Teflon Bag, On-Off Valve (4.7L) Back Catalog number: TE-23 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 385-0117-01 Tri-pod mounting bracket for Nephelometer (Tri-pod Price on request 800470 Anti-Tamper Plate, GilAir-3/GilAir-5/BDX-II Price on request 360-0135-01 GilAir PlusQuick Start Guide Price on request