Teflon Bag, On-Off Valve (1.2L) Back Catalog number: TE-21 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-0012-01 Gilian 800i/5000/10i/12 Replacement filter, pkg 10 Price on request GCU37500PVCMW Cassette, 37mm 3pc 5.0µm, PVC Matched, (50µg), 50/ Price on request 810-0203-02 GilAir-3 Programmable (ATEX), Pump only Price on request