Filter, Support Pads, Porous Plastic, 37mm, 20.0µm Back Catalog number: GPP3700 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0903-NO-R GilAir-Plus STP Single Starter Kit, No cord Price on request 810-0202-02 GilAir-3 Clock with timer (ATEX), Pump only Price on request 6075-0410-25 SCR-PHIL PAN-HD4-40 X 5/8 (Sold in pack of 25) Price on request