Unicel 4000 Series 10 sq. ft. Replacement Filter Cartridge | C-4310 Pool Test Kits & Labs The Pentair 170018 is the

The Pentair 170018 is the OEM replacement tank bottom assembly (lower housing half) for the FNS Plus 60 sq

Verify your spa's manufacture date before ordering

Prevents calcium and mineral staining

This listing includes 2 cartridges — the full quantity needed for one complete filter service

Features a rugged and 14-Inch body

Unicel 4000 Series 10 sq. ft. Replacement Filter Cartridge | C-4310 Pool Test Kits & Labs The Pentair 170018 is theThe Unicel 4000 Series C 4310 is a 10 sq. ft. replacement filter cartridge engineered for compact skimmer and spa filtration systems. With 216 precision pleated folds of 3 oz. Reemay 2033 polyester media, it delivers maximum surface area and water clarity in a small footprint housing a direct OEM grade replacement backed by Unicel's industry leading compatibility database. Specifications Filter Area 10 sq. ft. Length 4" Outer Diameter 4 1 4" Top Inner