Filter, Support Pads, Porous Plastic, 37mm, 20.0µm Back Catalog number: GPP3700 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GF25500PVC Filter, PVC, 5.0µm 25mm, 100/Pack Price on request 783-0018-01 Battery Pack, Gilian 12 (NiMH) Price on request TE-25 Teflon Bag, Septum Valve (0.5L) Price on request