Housing, 37mm 2pc Opaque, 50/Box Back Catalog number: GH37-2 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GP25 Filter Support Pads, Porous Plastic, 25mm, 100/Pac Price on request SC-6 Tedlar Bag (8L) Price on request GFPC525 Filter, 25mm, 5.0µm, Polycarbonate, Plain White, 1 Price on request