Robosource.net offers many types of pneumatic tubing, available pre-packed and by the foot.
High Quality SMC Pneumatic Tubing fits VEX EDR® Pneumatics components. Easy to use, simply cut to length. Made of ether-based polyurethane, this tubing is strong, flexible, and offers superior kink resistance. 5/32" Outside Diameter (4mm) 3/32" Inside Diameter 5 foot length (60") Black color SMC Part TU0425B Legal for use on competition robots:...