Filter, Support Pads, Porous Plastic, 37mm, 20.0µm Back Catalog number: GPP3700 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-1702-NO-R Gilibrator 3 KIT, POWER SUPPLY,1A 12VDC Price on request 810-0103-02 GilAir-5 Programmable (ATEX), Pump only Price on request 360-0181-01 Manual, Gilian 10i Price on request