Filter, Support Pads, Porous Plastic, 37mm, 20.0µm Back Catalog number: GPP3700 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GF37050T Filter, PTFE with Polypropylene Backing, 0.5µm, 37 Price on request 810-0201-02 GilAir-3 Basic (ATEX), Pump only Price on request 811-9929-01 Inhalable Dust Sampler, GSP-3.5 Conical Style (100 Price on request