Filter, Support Pads, Porous Plastic, 37mm, 20.0µm Back Catalog number: GPP3700 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 615-0802-01-R Gilian 800i/5000/10i/12 Five-Unit Carrying Case Price on request 811-1604-NO Gilian 12 Power Module, No Cord Price on request 800508-171-2301 GilAir-3 RC Pump, Starter Kit, 230V Euro Style Plu Price on request