We offer a variety of material or air tubing that has an OD of either 1/4" or 5/32". If you need to replace syringe adapter tubing, our X-series adapters use 1/4" clear air tubing and our XP-series adapters use 5/32" clear air tubing. If you need extra material line instead of air, we have clear or green tubing available. The replacement tubing for our pinch wand JGDMPW would be the 1/4" red silicone tubing. Tubing is sold per foot and comes coiled in a bag.