KOHLER K-21372 Aquifer Refine Carbon block CTO replacement filter
by KOHLER · Filter
PlumbingPlumbing FixturesFaucets
| Manufacturer part number | K-21372 |
|---|---|
| UPC | 00885612839817 |
Affiliate link: you pay on Easy Plumbing's site, under its shipping and returns. We may earn a commission. Delivery time is shown on Easy Plumbing's site.
Easy Plumbing prices are from its product feed as of 18 Oct 2026, not live: the current price and availability are on Easy Plumbing's own page.
Description
From Easy Plumbing's product listing.
Feel confident with every sip that you are providing the best quality water for you and your family. The Aquifer Refine water filtration system effectively reduces contaminants including lead, mercury, PFOA/PFOS, pharmaceuticals and VOC in your cold water. Reduces chlorine taste and order, and protects the Ultra Filter Filter head automatically turns off the water supply when cartridge is removed Replacing the carbon block CTO filter every 6 months keeps filtration system performing effectively Additional Resources: Spec Sheet Installation Instructions