Shelco-(12021-SB-B) Gasket for 12FOS, 12SD, & 12UD Series, Buna (Swing Bolt Style) Ecotech (D-25JG) 1/2"- 7/8" HB X 1/4" JG UNI. RO Drain Kit Common applications include single-tank water

Common applications include single-tank water softeners with downflow regeneration in residential and light commercial installations

1st & Final

Lead-free brass body with NPT female threaded inlet and outlet connections

5mm particles

clean water exits the cartridge at up to 2

Shelco-(12021-SB-B) Gasket for 12FOS, 12SD, & 12UD Series, Buna (Swing Bolt Style) Ecotech (D-25JG) 1/2"- 7/8" HB X 1/4" JG UNI. RO Drain Kit Common applications include single-tank waterThe Shelco 12021 SB B is a Buna N gasket engineered for swing bolt style housings in the 12FOS, 12SD, and 12UD filter series. This replacement seal ensures proper housing compression and leak free operation in commercial and industrial filtration systems. TECHNICAL DETAILS Gasket Specifications Part Number 12021 SB B Material Buna N (Nitrile Rubber) Housing Style Swing Bolt Compatible Series 12FOS, 12SD, 12UD Manufacturer Shelco Filters Application