Shelco-(12021-SB-B) Gasket for 12FOS, 12SD, & 12UD Series, Buna (Swing Bolt Style) 000 Gal 1 lb KDF-55/GAC Carbon - Chlorine & Heavy Metal Reduction Filter Connection Size 1-1/4" NPT x

Connection Size 1-1/4" NPT x 1-1/4" FIP Length 18 inches Material 304 Series Corrugated Stainless Steel Fittings Chrome-plated solid brass Washer High-temp EPDM (-40°F to 300°F) Burst Pressure 2200 PSI Certifications NSF/ANSI 61

boiler feedwater applications

Engineered specifically for use with old-style 1" Mazzei injectors

This carbon block filter is designed to fit Microline S7028 and Microline RS-21-CB5-EB systems

Shelco-(12021-SB-B) Gasket for 12FOS, 12SD, & 12UD Series, Buna (Swing Bolt Style) 000 Gal 1 lb KDF-55/GAC Carbon - Chlorine & Heavy Metal Reduction Filter Connection Size 1-1/4" NPT xThe 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