Housing, 37mm 2pc Opaque, 50/Box Back Catalog number: GH37-2 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800255 Single Variable Flow Kit, 7-10 x 110mm Price on request 811-1604-NO Gilian 12 Power Module, No Cord Price on request 800275-2 Gilibrator-2 Deluxe Kit, with Printer 230V , Euro Cord Price on request