Housing, 37mm 2pc Opaque, 50/Box Back Catalog number: GH37-2 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GF25080GRG Filter, MCE, 0.8µm 25mm, PCM, with Green Grid Lin Price on request 800142 Clip Assembly, Replacement for Filter Cassette Kit Price on request 811-1004-04 PM-4.0 Impactor Kit, Replacement for Models 810-10 Price on request