Housing, 37mm, 3Pc, 50/Box Back Catalog number: GCO37050 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 783-0013-01-R Battery Pack AA Alkaline Price on request 811-0802-02 Gilian 800i/5000/10i/12 Single Charger, 120V/240V, Price on request 810-0202-02 GilAir-3 Clock with timer (ATEX), Pump only Price on request