Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4537 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-0921-01-R GilAir Plus impinger Bracket for single impinger h Price on request 800252 Single Variable Flow Starter Kit (Includes 6x70mm, Price on request 800883-171-2305 GilAir-5 R Pump, 5-Pack with Universal 5-Unit Char Price on request