Cassette, 37mm, 2 pc, 0.4µm Polycarbonate, 50/Box Back Catalog number: GC7245PC Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended TE-23 Teflon Bag, On-Off Valve (4.7L) Price on request 402119 Charger, Single, BDX-II, 230V, Euro Plug Price on request 910-0910-EU-R GilAir-Plus Data Logging Single Starter Kit, Bluet Price on request