Housing, 37mm, 2Pc, 50/Box Back Catalog number: GCO37050-2 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 810-0102-02 GilAir-5 Clock, with timer (ATEX), Pump only Price on request 800844-1-230 Gilibrator-2Low Flow Diagnostic Kit, 230V, EU Cor Price on request 811-1004-01 PM-2.5 Impactor Kit, Replacement for Models 810-10 Price on request