CFS Carbon Block Filters for Flow-Pur, 4 Pack
- 4 cartridges per pack
- Standard 10 inch housings, 2.5 x 2.5 x 10 in
- 5 micron rating
- NSF/ANSI 42 certified by IAPMO R&T for chlorine, taste, odor
- 3 to 6 months replacement interval
- Cold water use, per the listing
- Flow-Pur 8, WCBCS-975-RV, Pentek CBC-10 and more cross-references
Updated 3 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A four-pack of carbon cartridges that cross-reference a long list of common housings, certified for chlorine, taste and odor. It makes no lead or health contaminant claims, so treat it as a taste and sediment filter.
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ASIN: B01FMPOR74Model: CFS-33
Overview
Homeowners with a standard size filter housing get a four-pack of carbon cartridges for cold water lines. Water flows through the activated carbon on its way to the tap, which reduces chlorine, taste, odor and sediment.
Wide cross-referencing against well-known part numbers makes restocking a standard housing simple. Its certification covers chlorine, taste and odor only, and the listing is inconsistent about whether the media is a carbon block or a wound polypropylene cartridge.
Who it's for
Houses with an existing standard housing and city water that tastes of chlorine can stock up on refills here. Those counting on the filter for lead or other health contaminants should choose a cartridge certified for them.
Pros and cons
- Four cartridges per pack
- Cross-references many common part numbers
- NSF/ANSI 42 certified by IAPMO R&T
- Preserves vital minerals while filtering
- Rated for cold water only
- No lead or health contaminant claims
- Listing mixes carbon block and wound descriptions
- Flow rate not listed
Performance notes
Water passes through activated carbon, which takes up chlorine and the compounds behind bad taste and odor, while the fine pore rating catches sediment. Sediment builds up in the media over time, so dirtier supplies call for changes at the shorter end of the interval.
Specifications
| Brand | CFS |
|---|---|
| Model | CFS-33 |
Frequently asked questions
How do I install the CFS-33 carbon filter cartridge?
The listing gives no installation steps. It is a replacement for standard 10 inch housings that take the listed part numbers, so follow your housing's own instructions.
Does the CFS-33 fit housings that use GXWH20F cartridges?
Yes. GXWH20F is on the also-fits list, along with GXWH04F, GXWH20S and GXRM10.
Does the CFS-33 cartridge remove lead?
The listing does not claim lead reduction. Its certification is NSF/ANSI 42 for chlorine, taste and odor, and it is described for tastes, smells and sediment.
Can the CFS-33 be used on a hot water line?
The listing describes it for removing tastes, smells and sediment from cold water only.