Filter, PTFE with Polypropylene Backing, 0.5µm, 37 Back Catalog number: GF37050T Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-0917-01-R Replacement Screws for GilAir Plus, Pk of 25 (4-40 Price on request 800485-111-01 GilAir-3 R Pump, No Battery Price on request GP25 Filter Support Pads, Porous Plastic, 25mm, 100/Pac Price on request