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APEC Water Systems ROES-PH75
- Reverse Osmosis
- Point of use
- City water
- Well water
- Complete system
- Listed
$189.99as of 2026-09-12
Secondary sourceVerified 2026-09-12Retailer listing
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Our verdict on the APEC Water Systems ROES-PH75
The APEC ROES-PH75 is a 6-stage alkaline under-sink reverse-osmosis system that WQA lists under NSF/ANSI 58 for TDS reduction at a certified 27.9 GPD as of 2026-09-12 — well below APEC's marketed 75 GPD rating — and it requires a cold-water feed, a drain connection, and operation within APEC's published 40–85 psi, 40–100 °F, pH 2–11, and 2,000 ppm TDS limits.[1][2]
Best for
- Buyers with under-sink space for a point-of-use system, a cold-water connection, and a drain outlet, within APEC's published pressure, temperature, pH, and TDS limits.
- Buyers who want a 4-gallon pressurized storage tank for on-demand delivery and who plan around the WQA-certified 27.9 GPD production rate rather than APEC's marketed 75 GPD figure.
Not for
- Feed water outside the published 40-85 psi, 40-100 °F, pH 2-11, or 2,000 ppm TDS limits; the manual says pressure below 30 psi means the unit cannot shut off at all and requires a booster-pumped model instead.
- Microbiologically unsafe or unknown-quality water without adequate disinfection before or after the system.
- Sites without a drain connection or a cold-water-only feed, or installations exposed to weather or direct sunlight.
Primary sourceVerified 2026-09-12WQA listingManufacturer datasheet
Certification check: APEC Water Systems ROES-PH75
Listed by WQA under NSF/ANSI 372 and NSF/ANSI 58, checked in the certifier directories as of 2026-09-12.
- WQA
- NSF/ANSI 372NSF/ANSI 58
IAPMO R&T and WQA certify products against the same NSF/ANSI standards as NSF, so a listing from either one is an equivalent third-party certification, not a lesser one.
| Directory | Result | Listing |
|---|---|---|
| NSF | No listing found (checked 2026-09-12) | View listing |
| IAPMO R&T | No listing found (checked 2026-09-12) | View listing |
| WQA | Listing found (checked 2026-09-12) | View listing |
Claimed vs. certified: APEC Water Systems ROES-PH75
| Contaminant | Status | Third-party listing | What the brand says |
|---|---|---|---|
| Aluminum | Marketed only | No entry |
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| Ameobic | Marketed only | No entry |
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| Arsenic Plus 3 | Marketed only | No entry |
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| Arsenic Plus 5 | Marketed only | No entry |
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| Asbestos | Marketed only | No entry |
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| Bacteria | Marketed only | No entry |
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| Barium | Marketed only | No entry |
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| Bicarbonate | Marketed only | No entry |
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| Boron | Marketed only | No entry |
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| Cadmium | Marketed only | No entry |
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| Calcium | Marketed only | No entry |
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| Chloramines | Marketed only | No entry |
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| Chloride | Marketed only | No entry |
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| Chlorine | Marketed only | No entry |
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| Chromate | Marketed only | No entry |
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| Chromium-3 | Marketed only | No entry |
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| Chromium-6 | Marketed only | No entry |
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| contaminants (general) | Marketed only | No entry |
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| Copper | Marketed only | No entry |
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| Cyanide | Marketed only | No entry |
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| Cysts | Marketed only | No entry |
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| Fluoride | Marketed only | No entry |
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| GenX | Marketed only | No entry |
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| Giardia | Marketed only | No entry |
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| Haloacetic Acids (HAA5) | Marketed only | No entry |
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| Herbicides | Marketed only | No entry |
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| Iron 2 | Marketed only | No entry |
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| Lead | Marketed only | No entry |
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| Magnesium | Marketed only | No entry |
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| Manganese 2 | Marketed only | No entry |
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| Mercury | Marketed only | No entry |
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| Nickel | Marketed only | No entry |
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| Nitrate | Marketed only | No entry |
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| Per-and Polyfluoroalkyl Substances (PFAS) | Marketed only | No entry |
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| Perfluorooctanesulfonic Acid (PFOS) | Marketed only | No entry |
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| Perfluorooctanoic Acid (PFOA) | Marketed only | No entry |
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| Pesticides | Marketed only | No entry |
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| Pharmaceuticals | Marketed only | No entry |
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| Phosphate | Marketed only | No entry |
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| Potassium | Marketed only | No entry |
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| Protozoa | Marketed only | No entry |
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| Radioactivity | Marketed only | No entry |
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| Sediment | Marketed only | No entry |
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| Selenium | Marketed only | No entry |
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| Silver | Marketed only | No entry |
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| Sodium | Marketed only | No entry |
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| Strontium | Marketed only | No entry |
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| Sulfate | Marketed only | No entry |
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| Total Trihalomethanes (TTHM) | Marketed only | No entry |
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| Turbidity | Marketed only | No entry |
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| Viruses | Marketed only | No entry |
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| VOCs | Marketed only | No entry |
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| Zinc | Marketed only | No entry |
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| TDS | Certified and marketed |
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| Lead (material content) | Certified only |
| No entry |
What the APEC Water Systems ROES-PH75 does not do
Do not connect this unit to a hot water source. The APEC Water Systems ROES-PH75's recorded operating limits are feed-water pressure at least 40 psi and up to 85 psi, feed-water temperature at least 40 °F and up to 100 °F, feed-water total dissolved solids up to 2,000 ppm, feed-water pH at least 2 pH and up to 11 pH, verified 2026-09-12.
Do not connect this unit to a hot water source.[1]
Primary sourceVerified 2026-09-12Manufacturer datasheet
Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.[1]
Primary sourceVerified 2026-09-12Manufacturer datasheet
APEC requires sheltered indoor installation away from hot or cold weather and direct sunlight.[1]
Primary sourceVerified 2026-09-12Manufacturer datasheet
Operating limits
| Parameter | Limit | What it means |
|---|---|---|
| feed-water pressure | at least 40 psi and up to 85 psi[1] | Primary sourceVerified 2026-09-12Manufacturer datasheet |
| feed-water temperature | at least 40 °F and up to 100 °F[1] | Primary sourceVerified 2026-09-12Manufacturer datasheet |
| feed-water total dissolved solids | up to 2,000 ppm[1] | Primary sourceVerified 2026-09-12Manufacturer datasheet |
| feed-water pH | at least 2 pH and up to 11 pH[1] | Primary sourceVerified 2026-09-12Manufacturer datasheet |
Do not buy it for these situations
DrainInstallation requires a drain saddle connection and an outlet for concentrate (brine) water; the manual describes drilling a 1/4-inch hole in the drain pipe for the saddle.[1]
Primary sourceVerified 2026-09-12Manufacturer datasheet
Water pressureFeed-water pressure below 40 psi is outside the published 40-85 psi operating range; the manual says pressure below 30 psi means the RO cannot shut off at all and a booster-pumped model is needed instead.[1]
Primary sourceVerified 2026-09-12Manufacturer datasheet
Well waterWell water that is microbiologically unsafe or of unknown quality needs adequate disinfection before or after the RO system; heavier well-water sediment may also require replacing the pre-filters sooner than the standard 6-12 month interval.[1]
Primary sourceVerified 2026-09-12Manufacturer datasheet
Fit and sizing: APEC Water Systems ROES-PH75
The APEC Water Systems ROES-PH75 is a reverse osmosis unit installed at the point of use, for city water and well water. It is rated for 27.9 gpd of membrane output, verified 2026-09-12.
| Form factor | Reverse Osmosis |
|---|---|
| Installed at | Point of use (one fixture) |
| Water source | City water and Well water |
| Membrane output | 27.9 gpd[1] Primary sourceVerified 2026-09-12WQA listing |
| Storage tank | 4 gallons[1] Primary sourceVerified 2026-09-12Manufacturer datasheet |
| Dimensions | 17.5 in H × 5.25 in W × 15.5 in D[1] Primary sourceVerified 2026-09-12Brand official |
| Operating pressure | 40–85 psi[1] Primary sourceVerified 2026-09-12Manufacturer datasheet |
| Operating temperature | 40–100 °F[1] Primary sourceVerified 2026-09-12Manufacturer datasheet |
| Needs electricity | No[1][2] Secondary sourceVerified 2026-09-12Retailer listingManufacturer datasheet |
| Needs a drain | Yes[1] Primary sourceVerified 2026-09-12Manufacturer datasheet |
What the APEC Water Systems ROES-PH75 really costs
The APEC Water Systems ROES-PH75 costs $189.99 as of 2026-09-12.
DIY install[1]
Primary sourceVerified 2026-09-12Brand official
Ten-year cost of ownership
| Purchase price (as of 2026-09-12) | $189.99 |
|---|---|
| Sum of the lines above (as of 2026-09-12) | $189.99 |
This is not a ten-year total. We could not verify a replacement-cartridge cost for this product, so the recurring spend — usually the largest part of what a filter costs over ten years — is missing from the rows above.
Warranty: Limited warranty to the original purchaser against defects in materials and workmanship, subject to the manual's standard operating conditions and exclusions. (1 years)[1]
Primary sourceVerified 2026-09-12Manufacturer datasheet
Money-back guarantee: Direct purchases from apecwater.com may be returned within 30 days of invoice with an RMA number; return shipping is generally the customer's responsibility and condition-based restocking fees (10-50%) may apply. (30 days)[1]
Primary sourceVerified 2026-09-12Brand official
Installing the APEC Water Systems ROES-PH75
Installing the APEC Water Systems ROES-PH75 is an easy job. DIY install, verified 2026-09-12.
Tools required
- Variable-speed drill
- 1/4-inch drill bit (for the drain line)
- 1/8-inch drill bit (pilot, not mandatory)
- 1/2-inch drill bit (standard faucet hole; air-gap faucet needs a 1-inch hole)
- 5/8-inch and 9/16-inch open-end wrenches, or an adjustable wrench
- Pliers
- Phillips screwdriver
- Utility knife or scissors
- Teflon tape
Primary sourceVerified 2026-09-12Manufacturer datasheet
Manufacturer documentation
- Install manual: https://cdn.shopify.com/s/files/1/0674/1304/9597/files/ROES-PH75-V5.1.pdf?v=1749750415 (accessed 2026-09-12)
- Install video: https://www.youtube.com/watch?v=4AwKg9ufW3g (accessed 2026-09-12)
Ongoing maintenance
- Replace stages 1-3 pre-filters every 6-12 months; private-well sediment may require earlier replacement. — every 6 months
- Replace the filter-housing O-rings yearly or when replacing the three pre-filters. — every 12 months
- Replace the stage-4 membrane (MEM-ES-75) every 2-4 years on city water or about every 2 years on private well water.
- Replace the stage-5 carbon post-filter (FI-ES-TCR-QC) every 2-4 years, ideally alongside the membrane.
- Replace the stage-6 pH+ mineral filter (FI-PHPLUS-QC) every 6-12 months. — every 6 months
- Replace the stage 1-3 filter housings every 5 years. — every 60 months
Primary sourceVerified 2026-09-12Manufacturer datasheet
Track record: APEC Water Systems ROES-PH75
APEC Water shows 5 out of 5 from 66 reviews as of 2026-09-12; Amazon shows 4.5 out of 5 from 4,121 reviews as of 2026-09-12.
| Source | Rating | Reviews | As of |
|---|---|---|---|
| APEC Water | 5 out of 5 | 66 | 2026-09-12 |
| Amazon | 4.5 out of 5 | 4,121 | 2026-09-12 |
What owners praise
Amazon's AI-generated review summary for this ASIN says customers find the system excellent in quality, easy to install and to change filters, and report that the water tastes great; one customer noted it performs well even with very hard water and iron, and multiple reviewers called it one of the best systems under $250.[1]
Secondary sourceVerified 2026-09-12Amazon review
What owners complain about
Amazon's rating breakdown for this ASIN shows 6% 1-star reviews, and its own review summary notes that while some customers report no leaks at all, others experience issues with the factory connections on the hoses; a featured customer-review video on the listing is titled “Doesn't last. Leaking from multiple spots and rusting.”[1]
Secondary sourceVerified 2026-09-12Amazon review
The APEC Water Systems ROES-PH75 against its family and its rivals
The APEC Water Systems ROES-PH75 has 4 siblings in its family: ROES-50, ROES-PH75X, ROES-PHUV75, ROES-UV75-SS.
The rest of the family
| Model | What differs |
|---|---|
| ROES-50 | 5-stage, 50 GPD marketed rate, no pH+ alkaline stage, lower price. |
| ROES-PH75X | Identical 6-stage 75 GPD alkaline system, bundled with an extra pre-filter set. |
| ROES-PHUV75 | Adds a 7th UV disinfection stage to the same alkaline 75 GPD system. |
| ROES-UV75-SS | 6-stage plus UV disinfection, 75 GPD marketed rate, no pH+ alkaline stage. |
APEC Water Systems ROES-PH75 questions, answered
Is the APEC ROES-PH75 NSF or WQA certified?
Verified health claim
WQA lists the ROES-PH75 under NSF/ANSI 58 for TDS reduction and separately under NSF/ANSI 372 for lead-free material content; as of 2026-09-12 no listing for this model was found in NSF's or IAPMO's own directories. IAPMO R&T and WQA test to the same NSF/ANSI standards as NSF itself, so a WQA-only listing is not a lesser certification -- it means a different accredited certifier did the testing.
How much water does the APEC ROES-PH75 produce?
WQA's exact-model listing reports a 27.9 GPD certified daily production rate, well below APEC's own marketed 75 GPD rating at 60 psi and 77 °F. Actual output varies with feed pressure and temperature, and the manual says a colder or lower-pressure feed will slow production further.
What is the price of the APEC ROES-PH75?
How often should I replace APEC ROES-PH75 filters?
Replace the three pre-filters and the stage-6 pH+ mineral filter every 6-12 months, the stage-4 membrane every 2-4 years on city water (about 2 years on well water), and the stage-5 carbon post-filter every 2-4 years, ideally alongside the membrane. APEC also recommends yearly O-ring replacement and replacing the stage 1-3 filter housings every 5 years.
Sources: [1]
Can the APEC ROES-PH75 be used with well water?
Verified health claim
Yes -- APEC's manual gives private-well-specific maintenance guidance, but microbiologically unsafe or unknown-quality water requires adequate disinfection before or after the system. Heavy well-water sediment may also mean replacing the pre-filters sooner than the standard 6-12 month interval.
Sources: [1]
What is the size of the APEC ROES-PH75, and can I take it with me if I move?
The main system measures 15.5 in L x 5.25 in W x 17.5 in H with a separate 4-gallon storage tank, and APEC's own installation guidance says the unit can stand in the sink cabinet unmounted, which makes it straightforward to disconnect and take with you. Whether it fits your next home's plumbing still depends on that home's cold-water and drain access.
Sources and data report: APEC Water Systems ROES-PH75
Every figure above is taken from the highest-trust source that carries it and re-derived from that source by a separate check. How we verify product data.
What we could not establish, and why
| Field | Why it is blank |
|---|---|
| mechanism.treatmentMethods | The manual and brand page publish a six-stage train (sediment, two carbon-block prefilters, RO membrane, post-carbon, pH+ mineral), but the schema's closed treatment vocabulary has no alkaline remineralization method; encoding only five stages would make the train incomplete and mapping the sixth stage to another slug would misrepresent it. |
| identity.upc | Neither APEC's product page nor the exact-model Amazon listing (ASIN B00NWZ1RCK) publishes a UPC/GTIN for this model. |
| fit.bathroomsServed | APEC's product page and the version 5.1 manual do not publish a bathrooms-served range for this point-of-use system. |
| fit.householdSize | APEC publishes tank and daily-production figures but no rated household-size range for this model. |
| fit.serviceFlowGpm | The brand page and manual publish daily membrane output and pressure-dependent tank fill, not a continuous faucet service-flow value in gpm. |
| fit.connectionSize | The manual supports either 1/2-inch or 3/8-inch cold-water plumbing through the supplied adapter, while the schema permits only one connection-size quantity. |
| cost.msrp | APEC's own site shows a $268.99 sale price and Amazon shows a $294.99 struck-through list price; neither source identifies a manufacturer suggested retail price, and the two figures do not agree. |
| cost.replacementSchedule | The manual gives 6-12 month and 2-4 year ranges rather than single-number intervals, which the schema's replacement row cannot represent without inventing a value. APEC also sells a "FILTER-MAX-ESPH 1 Year Set" bundling all six stages at $73.99, but using that bundle as the schedule would misstate the manual's own per-component intervals (the stage-4 membrane and stage-5 post-carbon filter are rated 2-4 years, not 1 year). |
| cost.tenYearTotalUsd | No single annual replacement cost is established (see cost.replacementSchedule), so a ten-year total cannot be computed honestly. |
| cost.wasteRatio | Neither the manual nor the brand page publishes a waste-to-product ratio for this system. |
| install.estimatedHours | APEC calls installation DIY but the manual and product page do not state an estimated completion time; Amazon reviewers report times ranging from about 25 minutes to 2 hours, too inconsistent to serve as a system spec. |
| comparisons.familyCertNote | The live WQA listings support ROES-PH75 specifically; no opened certifier source supports extending that certification scope to every Essence-series sibling (ROES-50, ROES-PH75X, ROES-PHUV75, or ROES-UV75-SS). |
| seo.verification | The verification loop has not run; this field is reserved for its later stamp. |
Every source behind this page
- Brand officialaccessed: 2026-09-12https://www.apecwater.com/products/roes-ph75-detail
- APEC's exact ROES-PH75 page showed the product as “Available” with an active, non-disabled Add to Cart button.
- APEC lists the system dimensions as 15.5 inches L by 5.25 inches W by 17.5 inches H.
- APEC describes the ROES-PH75 as “Easy Do-it-yourself Installation & Maintenance” and supplies complete installation hardware.
- APEC labels the ROES-PH75 as “Easy Do-it-yourself Installation & Maintenance.”
- APEC markets a 75 GPD system capacity rated at 60 psi and 77 °F.
- APEC displayed a $268.99 direct sale price.
- APEC lists the system dimensions as 15.5" L x 5.25" W x 17.5" H with a 4-gallon tank.
- WQA listingaccessed: 2026-09-12https://find.wqa.org/find-products/ctl/detail/mid/1054/cid/apec_water_systems/sid/5/keyword/roes-ph75
- WQA's exact-model listing reports a 27.9 GPD daily production rate for ROES-PH75 under NSF/ANSI 58 for TDS.
- WQA's exact-model listing reports a 27.9 GPD daily production rate for ROES-PH75.
- WQA lists ROES-PH75 under NSF/ANSI 58 for TDS.
- WQA reports a 27.9 GPD daily production rate for ROES-PH75.
- Manufacturer datasheetaccessed: 2026-09-12https://cdn.shopify.com/s/files/1/0674/1304/9597/files/ROES-PH75-V5.1.pdf?v=1749750415
- The manual specifies under-sink installation, a cold-water feed, a drain outlet, 40-85 psi, 40-100 °F, pH 2-11, and a 2,000 ppm maximum TDS.
- The manual warns against microbiologically unsafe or unknown-quality water without adequate disinfection and requires sheltered indoor installation.
- The manual states that input pressure below 30 psi means the RO cannot shut off at all and a booster-pumped model is needed instead.
- The manual gives the stage-6 mineral filter and the three pre-filters a 6-12 month replacement interval.
- The manual's Operating Parameter section says not to connect the RO to a hot water source.
- The manual gives this microbiological-safety warning verbatim in its General Installation/Operation/Maintenance Requirements.
- The manual's Operating Parameter section requires indoor sheltered installation and says to avoid weather and direct sunlight.
- The manual's warranty conditions table specifies a 40-85 psi standard operating pressure range.
- The manual specifies a 40-100 °F feed-water temperature range.
- The manual specifies a 2,000 ppm maximum feed-water TDS.
- The manual's warranty conditions table specifies pH 2-11.
- The manual's Step 2 (Drain Saddle Installation) requires drilling a 1/4-inch hole in the drain pipe and installing a drain saddle assembly.
- The manual specifies 40-85 psi and its troubleshooting section says input pressure below 30 psi means the RO cannot shut off at all, requiring a switch to a booster-pumped model.
- The manual gives private-well-specific maintenance guidance (shorter pre-filter and membrane intervals) and separately warns against microbiologically unsafe or unknown-quality water without disinfection.
- The manual identifies a nominal 4-gallon tank and explains usable fill varies from about 1.9 to 3.1 gallons depending on input pressure.
- The manual specifies 40-85 psi.
- The manual specifies 40-100 °F feed water.
- The manual repeatedly describes this as a non-pumped RO system and contains no electrical-installation step.
- The installation manual requires a drain saddle connection and an outlet for concentrate water.
- The manual's Limited Product Warranty section states a one-year warranty to the original purchaser.
- The manual publishes the recommended installation tools and drill-bit sizes.
- Official ROES-PH75 Installation Instruction & Owner's Manual, version 5.1, October 2024.
- The manual publishes the full Essence pH+ RO maintenance schedule for pre-filters, O-rings, membrane, post-carbon filter, mineral filter, and housings.
- The manual's Claimed GPD section states verbatim that “Lower water pressure and colder temperature will slow the system's output to less than the claimed GPD flow rate.”
- The manual publishes all stated replacement intervals for each stage.
- The manual gives private-well maintenance guidance and the microbiological-safety warning.
- The manual says the main system can stand in the sink cabinet without wall mounting.
- Retailer listingaccessed: 2026-09-12https://www.amazon.com/dp/B00NWZ1RCK
- Amazon's technical detail table lists “Power Source: Water Pressure” for this exact ASIN.
- Amazon's exact ROES-PH75 listing (ASIN B00NWZ1RCK) showed $189.99 (36% off a $294.99 list price).
- Amazon's “Customers say” AI summary on this ASIN's review section credits the system with quality, easy installation and filter changes, great taste, hard-water/iron performance, and value under $250.
- The listing's rating histogram shows 6% 1-star out of 4,121 ratings, its AI review summary mentions factory-hose-connection leak issues for some customers, and it features a customer review video titled “Doesn't last. Leaking from multiple spots and rusting.”
- Amazon displayed $189.99 for the exact ROES-PH75 (ASIN B00NWZ1RCK).
- Brand officialaccessed: 2026-09-12https://www.apecwater.com/pages/shipping
- APEC's Return Policy gives direct purchases a 30-day return window from invoice date and specifies RMA, shipping, and restocking-fee conditions for residential RO systems.
- Brand officialaccessed: 2026-09-12https://www.youtube.com/watch?v=4AwKg9ufW3g
- APEC Water's general RO installation video is embedded directly on the ROES-PH75 product page (youtube.com/embed/4AwKg9ufW3g).
- Government agencyaccessed: 2026-09-12https://www.cpsc.gov/search?search_api_fulltext=APEC%20ROES-PH75
- The CPSC search for "APEC ROES-PH75" returned no results.
- Unverifiedaccessed: 2026-09-12https://www.bing.com/search?q=%22ROES-PH75%22+(recall+OR+lawsuit+OR+litigation)
- The live web/news check returned no relevant ROES-PH75 recall or litigation result; Bing's displayed results were unrelated to the query.
- WQA listingaccessed: 2026-09-12https://find.wqa.org/find-products/ctl/detail/mid/1054/cid/apec_water_systems/sid/29/keyword/roes-ph75
- WQA separately lists ROES-PH75 under NSF/ANSI 372 for lead-free material content.
Cite this page
TapWaterData Editorial. "APEC ROES-PH75 Review: Specs, Cost & Cert Check." TapWaterData, verified 2026-09-12. https://www.tapwaterdata.com/filters/brand/apec/roes-ph75
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