Housing, 37mm 3pc Opaque, 50/Box Back Catalog number: GH37 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 810-0101-02 GilAir-5 Basic (ATEX), Pump only Price on request 910-0104-02 GilAir-5 Clock [ATEX], Starter Kit, 230V, Euro Plu Price on request 811-0012-01 Gilian 800i/5000/10i/12 Replacement filter, pkg 10 Price on request