Optipure 252-10405 S1-20B Hi-Capacity Sediment Prefilter 20" 255 gal The larger diameter CB3 may

The larger diameter CB3 may not fit some older Omnifilter housings

800 gallons @ 5 mic

Pressure Connection: v1/4" FNPT

Durable glass-reinforced nylon construction

Optipure 252-10405 S1-20B Hi-Capacity Sediment Prefilter 20" 255 gal The larger diameter CB3 mayThis Optipure 252 10405 S1 20B Hi Capacity Sediment Prefilter 20" 2 Pack is a 4. 5 x 20 drop in, extra high capacity PolyTrix dual gradient density filter cartridge that reduces sediment down to 1 micron. Features: PolyTrix gradient density depth filtration reduces dirt, rust, and other debris as small as 1 micron to assure clean, clear water and protect solenoids, valves and other fittings against wear and plugging. Filters out larger dirt and