Description

This is a Pentair 075787 Flat Stainless Steel Washer, 3/4 Inch OD x 5/16 Inch ID. This washer works in the following products: FNS Filters, Nautilus Filters, Nautilus Plus Filters, SM and SMBW 2000 and 4000 Series Filters, Star Filters, Star Polymeric Filters, Challenger High Flow Filters, Challenger High Pressure Filters.