Housing, 37mm, 2Pc, 50/Box Back Catalog number: GCO37050-2 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GFPC4537 Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Price on request 801124 Cyclone Vortex Finder Accessory, Replacement for 1 Price on request 801447 Side Insert Assembly GilAir-5 Price on request