Teflon Bag, On-Off Valve (4.7L) Back Catalog number: TE-23 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended TE-26 Teflon Bag, Septum Valve (1.2L) Price on request 800844-4-230 Gilibrator-2 Deluxe Diagnostic Kit, with Printer 2 Price on request 298-0031-01-R Single Unit Replacement Power Adapter only, USB Price on request