membrane solutions 5 micron 2.5" x 10" cto carbon block water filter cartridge replacement for whole house filtration systems, compatible with wfpfc8002, wfpfc9001, fxwtc, whkf-whwc, 6-pack 6 count (pack of 1) is up for auction in Tools & Home Improvement. The current bid is $0.05, 100% below the $31.99 MSRP, in Good Condition. Bid on this item at our Dayton - Edwin C. Moses Blvd. location before the auction closes.