Filter, PTFE with Polypropylene Backing, 0.5µm, 37 Back Catalog number: GF37050T Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-1004-04 PM-4.0 Impactor Kit, Replacement for Models 810-10 Price on request 910-0107-02 GilAir-5 Program [ATEX], Starter Kit, 230V, Euro P Price on request 811-9919-EU GilAir-3/5 BDX-2-Euro Five Unit Charger, Universal Price on request