Teflon Bag, On-Off Valve (4.7L) Back Catalog number: TE-23 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800255 Single Variable Flow Kit, 7-10 x 110mm Price on request 811-9918-02 Go-Cal AC Adapter NEMA, 100-240V Price on request 910-0910-NO-R GilAir-Plus Data Logging Single Starter Kit, Bluet Price on request