Go-Cal Replacent Tubing Kit Back Catalog number: 811-9917-02 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 6667-6206 Tubing, 1/4" ID x 1/16" W, Clear Vinyl (per foot) Price on request 910-0902-EU-R GilAir-Plus Data Logging Single Starter Kit, Euro Price on request 201050-100 Filter, Replacement (Packg of 100), GilAir-3/GilAi Price on request