Filter, Support Pads, Porous Plastic, 37mm, 20.0µm Back Catalog number: GPP3700 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800883-171-2301 GilAir-5 R Pump, Starter Kit, 230V Euro Style Plug Price on request 850190M Manual, Gilibrator-2 Price on request 811-0502-01 Gilibrator Cable Adapter Kit 15 to 9 pin (Replaces Price on request