12FOS and 22FOS Series Multi-Cartridge Filter Housings • Designed for industrial and commercial filtration needs • Heavy-duty 304L or 316L stainless steel construction for maximum durability and corrosion resistance • V-band clamp or swing bolt closures for quick and easy cartridge change outs and secure sealing • Holds 30" or 40" cartridge lengths to accommodate a wide range of flow rates • Accepts double open-ended (DOE) style cartridges (222 and 226 style adapters are optional) • Knife edge seals eliminate bypass on DOE cartridges • Top spring seals allow for cartridge length variations • Flange inlet and outlet connections allow for easy piping • Equipped with heavy-duty stainless steel mounting legs Applications Water Chemicals Electronics Power Coolants Desalination Food & Beverage Oil / Gas Inks / Paints / Coatings Pulp & Paper Specifications & Operating Parameters Maximum Operating Pressure Gaskets 150 psig (10.3 bar) @ 300°F (149°C) Buna N (FDA Grade) Optional: EPR, Silicone, Viton or Teflon Encapsulated Silicone Inlet and Outlet Connections Inlet /Outlet: 3" (12FOS) and 4" (22FOS) RF Flanges Drain Ports: 1/2" FNPT Vent Ports: 1/4" FNPT (12FOS), 1/2" FNPT (22FOS) Optional: RF flanges, Sanitary ferrules, MNPT, FNPT, BSP and Grooved fittings. Materials of Construction Head and Shell: 304L or 316L Stainless Steel Connections: 304L or 316L Stainless Steel Closure: Clamp: 304L Stainless Steel Swing Bolts: Zinc Plated Steel Vent and Drain Plugs: 304L or 316L Stainless Steel Mounting Legs: 304L Stainless Steel Finish Poly-coat on exterior surfaces Optional: Electro-polish, Glass bead or Passivate Cartridge Type DOE style cartridges (maximum 2 3/4" diameter for 12FOS and 2 5/8" diameter for 22FOS series) Optional: 222 and 226 adapters. For 2 3/4" cartridge 22FOS series holds twenty-one cartridges… order as 21FOS housing. Custom Options - Gauge Ports or Gauge Ports with Pressure Gauges See Ordering Guide for complete selection of options www.shelco.com

QUANTITY RATED INLET / MAXIMUM (LENGTH) OF FLOW OUTLET DIAMETER CARTRIDGES CAPACITY* (PIPE CARTRIDGE + GPM(LPM) SIZE) CLAMP STYLE SWING BOLT STYLE A MODEL A B C D E 12FOS2 12 (20") 168 (636) 3" 2 3/4" 39 1/2" (100.3 cm) 40 1/2" (102.9 cm) 15 3/8" (39.1 cm) 10" (25.4 cm) 16 11/16" (42.5 cm) 8" (20.3 cm) 12FOS3 12 (30") 252 (954) 3" 2 3/4" 49 1/2" (125.7 cm) 50 1/2" (128.3 cm) 15 3/8" (39.1 cm) 10" (25.4 cm) 16 11/16" (42.5 cm) 8" (20.3 cm) 12FOS4 12 (40") 336 (1272) 3" 2 3/4" 59 1/2" (151.1 cm) 60 1/2" (153.7 cm) 15 3/8" (39.1 cm) 10" (25.4 cm) 16 11/16" (42.5 cm) 8" (20.3 cm) 22FOS3** 22 (30")...