The #20 Standard whole house housing sump fits on Pentek, Culligan, Ametek, Kleen-Plus, US Filter, and American Plumber housings. The #20 Sump may not fit on other brands.
The #20 standard housing should be changed at least every 5 years.
The #20 housing sump fits #20 standard caps with any inlet/outlet size.
The # 20 Opaque canister holds 20" L x 2.5" W water filters.
The #20 standard housing should be changed at least every 5 years.