Housing, 37mm, 3Pc, 50/Box Back Catalog number: GCO37050 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0204-02 GilAir-3 Clock [ATEX], Starter Kit, 230V, Euro Plu Price on request 811-1710-01-R Gilibrator 3, High Flow Dry Cell (Flow Range 1 - 3 Price on request 783-0009-02-R Battery Pack, GilAir-5. UL, ATEX, NiMH Price on request