Shelco-(12021-SB-B) Gasket for 12FOS, 12SD, & 12UD Series, Buna (Swing Bolt Style) Harmsco (HC/40-20-AM) Hurricane 40 HP Pleated Polyester Anti Microbial Cartridge 20 Micron Filter Verify chemical compatibility with poly

Verify chemical compatibility with poly and PTFE materials before use

006" opening) Fine sand from new wells

🔄 Full Port Ball Valve

🔧 Pro Tip: Mark the installation date on the filter housing with a grease pencil or label

000 ppm and operating pressure between 100-225 psi for optimal performance

Shelco-(12021-SB-B) Gasket for 12FOS, 12SD, & 12UD Series, Buna (Swing Bolt Style) Harmsco (HC/40-20-AM) Hurricane 40 HP Pleated Polyester Anti Microbial Cartridge 20 Micron Filter Verify chemical compatibility with polyThe 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