Teflon Bag, Septum Valve (50L) Back Catalog number: TE-28 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 GF25500 Filter, MCE, 5.0µm, 25mm, 100/Pack Price on request 783-0015-01 Lithium Ion Replacement Battery Pack for Nephelome Price on request