FOS, FOSBN and FOC Series Single Cartridge Filter Housings with Bolt & Nut Closure for Liquids • Designed for industrial and commercial filter applications • Heavy duty construction for maximum durability • Various materials of construction for wide range of process requirements -- 304L or 316L stainless steel -- Brass nickel plated head with 304L SS body -- Cast Iron Head with a steel body • Accepts Double Open-End (DOE) cartridges • Available with 1/4", 3/8", 1/2", 3/4", and 1" connections. • Numerous gasket options for compatibility with most fluids • Bolt-nut-closure design for quick cartridge change outs (T-handle optional) • In line connections for easy installation • Knife edge seals at both end of cartridge housing eliminate potential bypass. Applications Water Chemicals Electronics Power Coolants Desalination Food & Beverage Oil / Gas Inks / Paints / Coatings Pulp & Paper Specifications & Operating Parameters Maximum Operating Pressure Materials of Construction 250 psig (17 bar) @ 275°F (135°C) Head / Shell: FOS - 304L or 316L Stainless Steel FOSBN - Brass nickel plated / 304L Stainless Steel FOC - Cast iron head / carbon steel Drain: FOS - Stainless Steel Plug FOSBN - Brass Petcock FOC - Brass Petcock Connections Inlet /Outlet: 1/2", 3/4" or 1" FNPT 1/4" and 3/8" only available for FOC Series Optional: BSPT, BSPP, RF Flanges, Sanitary Ferrules or Grooved Fittings Options Drain Port: 1/8" NPT (1/4" for FO-38 models) Gaskets Buna Optional: EPR, Silicone, Viton, Teflon, Neoprene, Vellumoid - Vent Port with Vent Screw - Gauge Ports - Bracket Kit - Variable Spring Load Seal - Tee Handle See Ordering Guide for complete selection of options www.shelco.com

MODEL QUANTITY RATED FLOW (LENGTH) OF CAPACITY* CARTRIDGES GPMLPM) MAXIMUM DIAMETER CARTRIDGE DRAIN SIZE 2 3/4" 2 3/4" 2 3/4" 2 3/4" 1/4" 28 3/4" STANDARD 1/4" 1/8" 1/8" 1/8" 1/8" SPRING LOADED A FO-38 FO-39 FO-78 FO-80 FO-90 1 (3 3/4") 1 (4 7/8") 1 (9 3/4") 1 (20") 4" 2 1/4" 1 (30") 1 1/2" 1.75 (6.6) 3.5 (132) 7 (26.5) 14 (53.0) 21 (79.5) B A 7 11/16" (19.5) 8 7/8" (22.5) 13 3/4" (34.9) 23 7/8" (60.6) 6 1/2" 33 7/8" (86.0) 5 3/4" (26.1) 6 15/16" (17.6) 11/13/16" (33.0) 21 15/16" (55.7) 31 15/16" (81.1) N/A 9 1/2" (24.1) 14 3/8" (36.5) 24 1/2" (62.2) 34 1/2" (87.6) B N/A 7 9/16" (19.2) 12 7/16"...