Teflon Bag, Septum Valve (50L) Back Catalog number: TE-28 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-1004-03 TSP Inlet, Replacement for Models 810-1002 and 810 Price on request 385-0117-01 Tri-pod mounting bracket for Nephelometer (Tri-pod Price on request 811-1004-04 PM-4.0 Impactor Kit, Replacement for Models 810-10 Price on request