Filter, Support Pads, Porous Plastic, 37mm, 20.0µm Back Catalog number: GPP3700 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800573-4 Diagnostic Panel only, Low (2-50cc, 20-200cc, 50-8 Price on request 360-0132-01 GilAir Plus Operation Manual Price on request 811-0501-01 Flow Monitoring Software Kit (Software, Cable, & M Price on request