Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4537 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended TE-26 Teflon Bag, Septum Valve (1.2L) Price on request 811-0920-01 Replacement Valve Caps (Pack of 2) Price on request GCU37500PVCMW Cassette, 37mm 3pc 5.0µm, PVC Matched, (50µg), 50/ Price on request