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iSpring CKC1 Countertop
- Faucet
- Point of use
- City water
- Complete system
- No listing
$42.50as of 2026-09-12MSRP $49.99 as of 2026-09-12
Secondary sourceVerified 2026-09-12Retailer listing
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Our verdict on the iSpring CKC1 Countertop
The iSpring CKC1 is a diverter-valve countertop carbon-block filter for chlorine, taste, odor and sediment on municipal tap water; it does not reduce Total Dissolved Solids (TDS), is not rated by iSpring for well water, and the CKC1 system itself has no listing found in the NSF, IAPMO R&T, and WQA directories as of 2026-09-12 (its FC15 cartridge appears only in the Replacement Module column of iSpring's unrelated NSF/ANSI 58 reverse-osmosis system listings).[1][2][3][4][5][6]
Best for
- Buyers on a municipal water supply who want a point-of-use countertop filter that connects to a kitchen faucet.
- Buyers who want to retain dissolved minerals in their drinking water rather than have them stripped out, since the CKC1 does not reduce Total Dissolved Solids (TDS).
Not for
- Well-water households — iSpring's own product-comparison table rates CKC1's suitable water source as “City Water” only, not the “City Water & Natural Water” rating it gives some siblings.
- Installations where supply pressure could exceed 80 psi without an inline regulator, or where water runs above the manual's 100°F maximum operating temperature.
Primary sourceVerified 2026-09-12Brand officialNSF listingIAPMO listingWQA listingManufacturer datasheet
Certification check: iSpring CKC1 Countertop
No listing found in the NSF, IAPMO R&T, and WQA directories as of 2026-09-12.
| 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 | No listing found (checked 2026-09-12) | View listing |
Claimed vs. certified: iSpring CKC1 Countertop
| Contaminant | Status | Third-party listing | What the brand says |
|---|---|---|---|
| Chlorine & chloramine (CKC1-PF sibling cartridge) | Marketed only | No entry |
|
| Chlorine, taste/odor & sediment | Marketed only | No entry |
|
| PFAS/PFOA/PFOS (CKC1-PF sibling cartridge) | Marketed only | No entry |
|
What the iSpring CKC1 Countertop does not do
iSpring's own product page states this countertop system “DOES NOT reduce Total Dissolved Solids (TDS)” and instead “keeps healthy minerals in your water while removing harmful chemicals.”
iSpring's own product page states this countertop system “DOES NOT reduce Total Dissolved Solids (TDS)” and instead “keeps healthy minerals in your water while removing harmful chemicals.”[1]
Primary sourceVerified 2026-09-12Brand official
The installation manual gives an explicit cold-water-only warning (“WARNING: For cold water only”) and a maximum operating temperature of 100°F (38°C); it is not designed for hot-water lines.[1]
Primary sourceVerified 2026-09-12Manufacturer datasheet
The shared CKC/CT10 diverter-valve installation hardware does not fit pull-out, spray-style, touchless, or irregular-shaped kitchen faucets; iSpring's CKC1-PF listing specifies compatible threads of only 15/16"-27 male or 55/64"-27 female.[1][2]
Primary sourceVerified 2026-09-12Retailer listingManufacturer datasheet
Do not buy it for these situations
Well wateriSpring's own product-comparison table rates CKC1's Suitable Water Source as “City Water” only, not the “City Water & Natural Water” rating given to siblings like CT10 and DF2 — it is not recommended for well or other untreated/natural water sources.[1]
Primary sourceVerified 2026-09-12Brand official
Water pressureThe manual states the housing is rated for structural use at pressures up to 80 psi, and recommends that if supply pressure may exceed 80 psi, an approved pressure regulator should be installed inline on the 1/4" tubing.[1]
Primary sourceVerified 2026-09-12Manufacturer datasheet
How the iSpring CKC1 Countertop works
The iSpring CKC1 Countertop treats water in one stage: Activated carbon, verified 2026-09-12.[1][2]
| Stage | Method | Media | Micron rating |
|---|---|---|---|
| 1 | Activated carbon | coconut shell activated carbon block (FC15 cartridge) | 5 µm |
Primary sourceVerified 2026-09-12Brand officialRetailer listing
Fit and sizing: iSpring CKC1 Countertop
The iSpring CKC1 Countertop is a faucet unit installed at the point of use, for city water.
| Form factor | Faucet |
|---|---|
| Installed at | Point of use (one fixture) |
| Water source | City water |
| Dimensions | 13 in H × 6 in W × 5 in D[1] Primary sourceVerified 2026-09-12Brand official |
| Operating pressure | 10–80 psi[1] Primary sourceVerified 2026-09-12Manufacturer datasheet |
| Operating temperature | 41–100 °F[1] Primary sourceVerified 2026-09-12Manufacturer datasheet |
What the iSpring CKC1 Countertop really costs
The iSpring CKC1 Countertop costs $42.50 as of 2026-09-12. Over ten years, including installation and replacement elements, the recorded total is $482.30.
DIY install[1]
Primary sourceVerified 2026-09-12Brand official
Replacement schedule
| Element | Replace | Cost per year |
|---|---|---|
| FC15 | every 6 months | $43.98 |
Primary sourceVerified 2026-09-12Brand official
Ten-year cost of ownership
| Purchase price (as of 2026-09-12) | $42.50 |
|---|---|
| Replacement elements, 10 × $43.98/year | $439.80 |
| Sum of the lines above (as of 2026-09-12) | $482.30 |
| Recorded ten-year total | $482.30 |
Warranty: 1-year limited manufacturer warranty, plus lifetime technical support. (1 years)[1][2]
Primary sourceVerified 2026-09-12Manufacturer datasheetRetailer listing
Money-back guarantee: 30-day money-back guarantee. (30 days)[1]
Primary sourceVerified 2026-09-12Manufacturer datasheet
Installing the iSpring CKC1 Countertop
Installing the iSpring CKC1 Countertop is an easy job. DIY install, verified 2026-09-12.
Manufacturer documentation
- Install manual: https://www.ispringfilter.com/index.php?rt=account/download/startdownload&download_id=17 (accessed 2026-09-12)
- Install video: https://www.youtube.com/watch?v=Ppbvj5N1Ars (accessed 2026-09-12)
Ongoing maintenance
- Replace the FC15 carbon-block cartridge, then re-condition the new cartridge: flush for at least 10 minutes, let stand upright for 24 hours, then flush 5 more minutes before use.
- Clean the wet (water-contact) surface of the filter housing and cap using a washcloth or soft brush; bleach may be used to sanitize, then rinse thoroughly.
Primary sourceVerified 2026-09-12Manufacturer datasheet
Track record: iSpring CKC1 Countertop
Amazon shows 4.5 out of 5 from 1,159 reviews as of 2026-09-13; iSpring (brand store) shows 5 out of 5 from 8 reviews as of 2026-09-13.
| Source | Rating | Reviews | As of |
|---|---|---|---|
| Amazon | 4.5 out of 5 | 1,159 | 2026-09-13 |
| iSpring (brand store) | 5 out of 5 | 8 | 2026-09-13 |
What owners praise
Amazon's review-summary analysis finds installation to be a common point of praise — 42 mentions, 33 positive — with customers describing it as easy to install and connect, and one customer noting that the included tool makes sealing the filter simple.[1]
Secondary sourceVerified 2026-09-12Retailer listing
Reviewers commonly credit the filter with improving tap-water taste and eliminating a chlorine taste (32 mentions in Amazon's review summary, 22 positive).[1]
Secondary sourceVerified 2026-09-12Retailer listing
What owners complain about
Leakage at the housing base is the most negative recurring theme in Amazon's review summary: 31 mentions, 21 negative, with review excerpts describing leaks at the base that would not stop.[1]
Secondary sourceVerified 2026-09-12Retailer listing
A minority of reviewers report the filtered water tastes worse rather than better, and are dissatisfied with the filter's effect on taste.[1]
Secondary sourceVerified 2026-09-12Retailer listing
Recalls and litigation
LitigationFTC Matter 172-3033 / Docket C-4611: iSpring Water Systems, LLC, described by the FTC as a Georgia-based distributor of water filtration systems, settled FTC allegations that it made misleading, unqualified “Made in USA” claims for its water filtration systems and parts. The consent order was made final on 2017-04-18 and bars unqualified U.S.-origin claims going forward. It is not specific to the CKC1 line. (2017-04-18)
https://www.ftc.gov/legal-library/browse/cases-proceedings/172-3033-ispring-water-systems
Primary sourceVerified 2026-09-12Government agency
The iSpring CKC1 Countertop against its family and its rivals
The iSpring CKC1 Countertop has 2 siblings in its family: CKC1C, CKC1-PF.
iSpring's own FC15 cartridge — the cartridge that ships with the CKC1 — appears in the Replacement Module column of NSF's own directory listing for iSpring's NSF/ANSI 58 reverse-osmosis systems (the RCC7, RCC7AK, RCC7AK-UV, RCC7-BLK, RCC7-BN, RCC7AK-BLK, RCC7AK-BN, RCC7AK-UVBLK, RCC7AK-UVBN and RCC7UV models). That listing covers those RO systems, not the CKC1 countertop unit: no listing was found in the NSF, IAPMO R&T, and WQA directories for CKC1, CKC1C, or CKC1-PF as of 2026-09-12, and the RO listing makes no contaminant claim for the CKC1.[1][2][3][4]
Primary sourceVerified 2026-09-12NSF listingIAPMO listingWQA listing
The rest of the family
| Model | What differs |
|---|---|
| CKC1C | Same FC15 carbon-block cartridge and chlorine-removal marketing claim as CKC1, in a clear see-through housing instead of white. Its own Amazon listing (B00A2WTLAQ, 2026-09-12) shows no featured buy box — only a “High price” badge and “See All Buying Options” — but that page's own Set name selector lists “1 option from $49.99” for CKC1C, matching iSpring's own brand-site price of $49.99 (ispringfilter.com, 2026-09-12), versus CKC1's own $42.50 buy-box price (Amazon, 2026-09-12). |
| CKC1-PF | Uses the FC15-PF cartridge and adds PFAS/PFOA/PFOS reduction (SGS lab-tested) and chloramine to CKC1's chlorine/odor/sediment claim; no listing found in the NSF, IAPMO R&T, and WQA directories for CKC1-PF as of 2026-09-12. $67.99 versus CKC1's $42.50-$49.99 (Amazon, 2026-09-12); both list a 6-12 month cartridge life on Amazon. |
iSpring CKC1 Countertop questions, answered
Does the iSpring CKC1 reduce Total Dissolved Solids (TDS)?
No. iSpring's own product page states the CKC1 “DOES NOT reduce Total Dissolved Solids (TDS)”; it removes chlorine, taste, odor and sediment while retaining minerals, and iSpring points buyers who want TDS reduction toward its reverse-osmosis systems instead.
Sources: [1]
How often does the iSpring CKC1 filter cartridge need to be replaced?
Is the iSpring CKC1 NSF certified?
Verified health claim
No listing found in the NSF, IAPMO R&T, and WQA directories as of 2026-09-12 for CKC1, CKC1C, or CKC1-PF. iSpring's own storefront names the replacement cartridge “FC15 NSF/ANSI 58 Certified Standard 10 inch CTO Carbon Block Water Filter Cartridge Replacement,” and NSF's own directory does list FC15 in the Replacement Module column of iSpring's NSF/ANSI 58 reverse-osmosis systems (the RCC7 family) — but that listing covers those RO systems, not the CKC1 countertop unit, and carries no contaminant claim for the CKC1.
Can the iSpring CKC1 be used on well water?
Verified health claim
iSpring does not recommend it. The brand's own product-comparison table rates CKC1's suitable water source as “City Water” only, unlike some siblings rated for “City Water & Natural Water.”
Sources: [1]
Does the CKC1-PF actually remove PFAS?
Will the iSpring CKC1-PF fit my kitchen faucet?
Only if your faucet has a standard 15/16"-27 male thread or 55/64"-27 female thread; iSpring's own CKC1-PF listing says it is not compatible with pull-out, spray-style, touchless, or irregular-shaped faucets.
Sources: [1]
Sources and data report: iSpring CKC1 Countertop
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 |
|---|---|
| certified.certIndexKey | Checked apps/website/data/certifications/by-brand/ispring.json and ispring-water-systems-llc.json (14 records each, all RO systems: RCC7/RCC7AK/RO500 family) — no CKC1, CKC1C, or CKC1-PF entry, matching today's live NSF/IAPMO/WQA lookups which also show no listing for the CKC line. |
| fit.bathroomsServed | This is a single-tap point-of-use countertop filter; iSpring publishes no bathroom-count rating for this product class in any source reviewed. |
| fit.householdSize | iSpring's product page and manual publish no supported household-size range for CKC1. |
| fit.serviceFlowGpm | No source reviewed (brand page, manual, Amazon listing) publishes a rated continuous service-flow figure for CKC1; copy only says the system 'installs in minutes' with no flow-rate spec. |
| fit.roOutputGpd | CKC1 is a carbon-block countertop filter, not a reverse-osmosis system, so no RO output rating is published. |
| fit.roTankCapacity | CKC1 has no RO storage tank; no tank-capacity value is published. |
| fit.connectionSize | The manual describes included male-to-male faucet thread adapters but does not publish a specific thread size or connection diameter for CKC1 itself; only the CKC1-PF sibling's Amazon listing states an exact thread spec (15/16"-27 / 55/64"-27), which is not carried over here since it was not confirmed for CKC1's own hardware. |
| fit.requiresElectricity | The product page and manual describe a passive, diverter-valve installation but do not explicitly state an electricity requirement as a formal specification. |
| fit.requiresDrain | The product page and manual do not explicitly publish whether a drain connection is required; the diverter-valve design returns unfiltered water to the faucet rather than to a drain, but this is not stated as a formal spec. |
| cost.wasteRatio | CKC1 is not a reverse-osmosis system, so no drain-to-product waste ratio applies or is published. |
| install.estimatedHours | Brand and Amazon copy describe installation only qualitatively ('installs in minutes', 'no drilling required'); no source publishes a specific installation-time figure in hours. |
| seo.cluster.primary.kd | The approved build-list row carries no Ahrefs keyword-difficulty score for this term; per prior research, Ahrefs API units were exhausted before this run, so no live KD lookup was attempted. |
| seo.verification | The independent verify loop has not yet run; this field is reserved for its verification stamp. |
Every source behind this page
- Retailer listingaccessed: 2026-09-12https://www.amazon.com/dp/B009EDZQMQ
- This ASIN is listed In Stock today with active Add to Cart / Buy Now controls, an Amazon's Choice badge, and "100+ bought in past month".
- Listing copy states ‘The high quality coconut-shell carbon block filter turns tap water into cleaner, healthier drinking water.’
- Amazon buy box shows $42.50 (15% off the $49.99 List Price) for this ASIN today.
- Amazon's Product information table gives Manufacturer Warranty Description: 1 Year Warranty.
- Amazon's AI-generated review-topic summary lists Installation as 42 mentions, 33 positive / 9 negative, and reads: ‘Customers find the water filter easy to install and connect, with one customer noting that the included tool makes sealing the filter simple.’
- Amazon's AI-generated review-topic summary lists Water taste as 32 mentions, 22 positive / 10 negative.
- Amazon's AI-generated review-topic summary lists Leakage as 31 mentions, 10 positive / 21 negative, and individual review excerpts describe unresolved leaking at the base.
- Amazon's AI-generated review-topic summary notes mixed water-taste opinions, with 10 of 32 mentions negative.
- Listing copy states ‘It ensures a continuous supply of clean and pure drinking water for 6-12 months, depending on your local water quality.’
- Brand officialaccessed: 2026-09-12https://www.ispringfilter.com/ispring-ckc1-countertop-water-filter-white-housing-with-carbon
- iSpring's own product page shows Availability: In Stock with an active Add to Cart / Buy Now button.
- iSpring's own product-comparison table lists CKC1's Suitable Water Source as City Water, versus City Water & Natural Water for CT10 and DF2.
- iSpring's own product description states the system DOES NOT reduce Total Dissolved Solids (TDS) and instead keeps minerals in the water.
- Product description states ‘a standard 5 micron Carbon Block Cartridge’, and names the cartridge as FC15.
- The PLEASE NOTE bullet states the system does not reduce TDS and retains minerals.
- The product-family comparison table's Suitable Water Source row lists City Water for CKC1's column.
- Product page gives Product Dimensions: 5.00"L x 6.00"W x 13.00"H.
- Brand storefront lists CKC1 at $49.99.
- EASY INSTALLATION bullet: no drilling required, portable and easy to install.
- LOW MAINTENANCE bullet recommends replacing the FC15 cartridge every 6 months, and the same page's Frequently Bought Together section prices a standalone FC15 replacement at $21.99 (two per year = $43.98).
- PLEASE NOTE bullet states the system does not reduce TDS and names the RO500/RCT600 as iSpring's TDS-reducing alternatives.
- LOW MAINTENANCE bullet recommends replacing the FC15 cartridge every 6 months.
- Names the replacement cartridge ‘FC15 NSF/ANSI 58 Certified Standard 10 inch CTO Carbon Block Water Filter Cartridge Replacement, 5 Microns’ in the product listing.
- Product-comparison table's Suitable Water Source row lists City Water for CKC1's column, versus City Water & Natural Water for CT10/DF2.
- NSF listingaccessed: 2026-09-12https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=CKC1&Standard=&ProductType=&PlantState=&PlantCountry=&PlantRegion=&submit3=Search
- No Matching Products Found for TradeName CKC1.
- No Matching Products Found for TradeName CKC1 (and, checked separately, CKC1-PF and CKC1C).
- NSF listingaccessed: 2026-09-12https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=iSpring&Standard=&ProductType=&PlantState=&PlantCountry=&PlantRegion=&submit3=Search
- A CompanyName search for iSpring returns 14 NSF/ANSI 58 reverse-osmosis listings (RCC7, RCC7AK, RCC7AK-UV, RO500 family, RCC7-BLK/-BN, RCC7AK-BLK/-BN, RCC7AK-UVBLK/-UVBN, RCC7UV); the Replacement Module column for the RCC7-family rows reads FP15/FG15/FC15/FT15/MC7. None of the 14 listed Brand Name/Trade Name/Model rows is CKC1, CKC1C, or CKC1-PF.
- NSF/ANSI 58 listing for iSpring Water Systems LLC's RCC7-family reverse-osmosis systems lists FC15 in the Replacement Module column.
- IAPMO listingaccessed: 2026-09-12https://pld.iapmo.org/
- Listed Model searches for CKC1, CKC1-PF, and CKC1C, and a Listee Name search for iSpring, all returned "No data found".
- Listed Model searches for CKC1, CKC1-PF, and CKC1C returned "No data found".
- Listed Model searches for CKC1, CKC1-PF, and CKC1C returned No data found.
- Listed Model search for CKC1-PF returned "No data found".
- WQA listingaccessed: 2026-09-12https://find.wqa.org/find-products#/keyword/CKC1
- Manufacturer/Brand/Model search for CKC1 (and separately CKC1-PF, CKC1C, iSpring) returned "No results."
- Manufacturer/Brand/Model search for CKC1 (and separately CKC1-PF, CKC1C) returned "No results."
- Manufacturer/Brand/Model search for CKC1 (and separately CKC1-PF, CKC1C) returned No results.
- Manufacturer datasheetaccessed: 2026-09-12https://www.ispringfilter.com/index.php?rt=account/download/startdownload&download_id=17
- Operating Parameters table gives Maximum Operating Pressure 80 psi and Maximum Operating Temperature 100°F, and the Pressure information footnote recommends an inline regulator above 80 psi.
- Section 1.1 gives the cold-water-only warning; the Operating Parameters table gives Maximum Operating Temperature 100°F (38°C).
- The Carton Contents list shows the same ‘Metal Diverter Valve with Faucet Thread Adapters’ hardware ships with every CKC/CT10-series unit.
- The ‘Pressure information’ footnote gives the 80 psi structural rating and the regulator recommendation above that pressure.
- Operating Parameters table gives Minimum Operating Pressure 10 psi and Maximum Operating Pressure 80 psi.
- Operating Parameters table gives Minimum Operating Temperature 41°F and Maximum Operating Temperature 100°F.
- Manual's Warranty section states a 1 year Manufacturer Warranty and Lifetime tech support.
- Manual's Warranty section states a 30-day money back guarantee.
- Manual states hand tightening is typically enough for both the housing and the faucet adapter, with the included wrench needed only for an extra 1/4-1/2 turn if necessary.
- ‘CKC Series and CT10 Series Countertop Water Filter Installation and Conditioning Instructions’ covers CKC1's installation, conditioning, and operating-parameter specs.
- Manual sections 2.0, 4.0 and 5.0 describe cartridge conditioning after replacement and housing/cap cleaning.
- Manual section 4.0 states the cartridge will need to be replaced every 3-12 months depending on water condition.
- Retailer listingaccessed: 2026-09-12https://www.amazon.com/dp/B0FCV2P98Z
- ‘Know Before You Buy’ bullet gives the exact compatible/incompatible faucet thread and style constraints for the CKC1-PF listing.
- ‘Know Before You Buy’ bullet gives the exact compatible/incompatible faucet thread and style constraints.
- Brand officialaccessed: 2026-09-12https://www.youtube.com/watch?v=Ppbvj5N1Ars
- iSpring's own CKC1 product page embeds this video in its “How to install” support section via an iframe pointing at youtube.com/embed/Ppbvj5N1Ars; YouTube's own oEmbed metadata for the video gives the title “Installation & Filter Replacement of CKC / CT10 Series Countertop Water Filter | Step by Step” and author “iSpring Filter” (youtube.com/@iSpringFilter), confirming it is iSpring's own official installation walkthrough.
- Government agencyaccessed: 2026-09-12https://www.ftc.gov/legal-library/browse/cases-proceedings/172-3033-ispring-water-systems
- FTC case summary and timeline for iSpring Water Systems, LLC, Matter 172-3033, order final 2017-04-18.
- Government agencyaccessed: 2026-09-12https://www.cpsc.gov/search?search_api_fulltext=iSpring+CKC1
- CPSC site search for ‘iSpring CKC1’ returned No Results across all result categories.
- Brand officialaccessed: 2026-09-12https://www.ispringfilter.com/ispring-ckc1-pf-25-x-10-countertop-water-filter-sgs-tested-filter-reduces-pfas-chlorine-odors---easy-installation-fits-most-faucets-up-to-12-months-white-1-filter-included
- Product copy: ‘Equipped with the FC15-PF carbon fiber cartridge, tested by SGS for its effectiveness in reducing PFAS.’
- NSF listingaccessed: 2026-09-12https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=CKC1-PF&Standard=&ProductType=&PlantState=&PlantCountry=&PlantRegion=&submit3=Search
- No Matching Products Found for TradeName CKC1-PF.
- WQA listingaccessed: 2026-09-12https://find.wqa.org/find-products#/keyword/CKC1-PF
- Manufacturer/Brand/Model search for CKC1-PF returned "No results."
Cite this page
TapWaterData Editorial. "iSpring CKC1 Countertop Review: Specs, Cost & Cert Check." TapWaterData, verified 2026-09-12. https://www.tapwaterdata.com/filters/brand/ispring/ckc1-countertop
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