Cassette, 37mm, 2 pc, 0.8µm Polycarbonate, 50/Box Back Catalog number: GC728PC Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended TE-26 Teflon Bag, Septum Valve (1.2L) Price on request 200158 Cyclone Spring (each) Price on request 200222 Impinger Holder, Single, Aluminum, GilAir/HFS Price on request