Housing, 37mm 2pc Opaque, 50/Box Back Catalog number: GH37-2 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GF25TQ Filter, Tissue Quartz, (99.90% retention of 0.3µm Price on request C-EZVOCPO Easy-VOC pump (with CapLok tool and carry case) Price on request 360-0162-01 Go-Cal Manual Price on request