Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4537 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended TE-25 Teflon Bag, Septum Valve (0.5L) Price on request GC7345PC Cassette, 37mm, 3 pc, 0.4µm Polycarbonate, 50/Box Price on request 800510-171-2305 GilAir-3 RP Pump, 5-Pack with Universal 5-Unit Cha Price on request