Filter, PTFE with Polypropylene Backing, 0.5µm, 37 Back Catalog number: GF37050T Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GCU37500PVCPW Cassette, 37mm, 3pc, 5.0µm, PVC, Preweighed, (100µ Price on request 811-1004-04 PM-4.0 Impactor Kit, Replacement for Models 810-10 Price on request 811-9932-01 Belt Harness Assembly for FSP-10, FSP2, and GSP-3. Price on request