EVABarrier Double Wall Tubing - 13/64" ID (5mm) X 5/16" OD (8mm) (Per Foot)
If you are now using the new Duotight, John Guest, DM Fit, or other brands of Push-In fittings that require 5/32" ID (5mm) X 5/16" OD (8mm) hoses, use this superior EVABarrier Double Wall Tubing that is BPA, PVC, and Plasticizer free.
The proprietary polymer inner barrier is smoother than most tubing, which leaves less area for bacteria to grow. This inner wall also protects against oxygen exposure and CO2 loss.
The outer Ethylene-vinyl acetate (EVA) wall is strong and kink resistant, which are two other reasons for you to use it with your push-in fittings.
Note: EVABarrier Double Wall Tubing is priced and sold by the foot, and the maximum length of a single piece of EVABarrier is 39'.