Go-Cal Replacent Tubing Kit Back Catalog number: 811-9917-02 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9943-01-R Cable, USB-A to USB-B (6 ft) Price on request 783-0013-01-R Battery Pack AA Alkaline Price on request 800320-1 Air Boss & Restrictor Kit, GilAir-3/GilAir-5 and B Price on request