Filter, Support Pads, Porous Plastic, 37mm, 20.0µm Back Catalog number: GPP3700 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0912-EU-R GilAir-Plus Data Logging 5-Pump Starter Kit, Bluet Price on request KB-5-10 Kynar Bag 5.0L Pack of 10 Price on request 811-9927-08 Cyclone, 37mm Filter Screen Price on request