Teflon Bag, Septum Valve (1.2L) Back Catalog number: TE-26 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GFG858X10 Filter, Glass Fiber, Binderless, 1.1µm, 8" x 10", Price on request 811-0920-01 Replacement Valve Caps (Pack of 2) Price on request 297-0012-01 USB Communications Cable for Nephelometer Price on request