Watts SF-20-425 20" x 4.5" String Wound Standard Filter Cartridges PureT (B890-BK34) 20" Filter Housing 3/4" NPT Blue/Black Reinstall housing cap with lubricated

Reinstall housing cap with lubricated o-ring

this filter combines dense carbon block filtration with phosphate treatment to address chlorine

This lid cover is designed specifically for Autotrol I-Series control valves commonly found in residential and commercial water softening and filtration systems

Covers 0-0

Amtrol 147-69 44-Gallon Steel RO Pressure Tank

Watts SF-20-425 20" x 4.5" String Wound Standard Filter Cartridges PureT (B890-BK34) 20" Filter Housing 3/4" NPT Blue/Black Reinstall housing cap with lubricatedThe Watts SF 20 425 delivers true depth filtration through precision string wound polypropylene construction, engineered for demanding commercial, whole house, and well water applications. This 20" x 4. 5" cartridge handles everything from mineral acids to caustic alkalis with exceptional dirt holding capacity and minimal media migration. SPECIFICATIONS Watts SF 20 425 Technical Details Dimensions 20" x 4. 5" Micron Rating 5 Micron Filter Media