Filter, 37mm, 0.2µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC0237 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended TE-28 Teflon Bag, Septum Valve (50L) Price on request GCU37500PVCPW Cassette, 37mm, 3pc, 5.0µm, PVC, Preweighed, (100µ Price on request 811-1004-01 PM-2.5 Impactor Kit, Replacement for Models 810-10 Price on request