Housing, 37mm, 3Pc, 50/Box Back Catalog number: GCO37050 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 201050-100 Filter, Replacement (Packg of 100), GilAir-3/GilAi Price on request TE-22 Teflon Bag, On-Off Valve (0.5L) Price on request GCU37500PVCMW Cassette, 37mm 3pc 5.0µm, PVC Matched, (50µg), 50/ Price on request