Filter, Support Pads, Porous Plastic, 37mm, 20.0µm Back Catalog number: GPP3700 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9930-01 Cyclone, FSP-2 Higgins-Dewell Style Cyclone with E Price on request 811-1004-04 PM-4.0 Impactor Kit, Replacement for Models 810-10 Price on request GCU25080BLG Cassette, 25mm, Classic Style, PCM, 0.8µm, MCE Bla Price on request