Teflon Bag, On-Off Valve (4.7L) Back Catalog number: TE-23 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800470 Anti-Tamper Plate, GilAir-3/GilAir-5/BDX-II Price on request 910-0910-NO-R GilAir-Plus Data Logging Single Starter Kit, Bluet Price on request 201119 Filter inside low flow modules 800518 & 800519 Price on request