Clear braid tubing, Clear PVC with Polyester cord. Recommended coupling: standard shank fitting with ferrules or clamps, normally used on rubber hose, and screw in reusable type fittings. Polyethylene tubing is easily installed, flexible, corrosion resistant. can be used for drinking water, on ice makers, water softeners, boats, swimming pools, and other uses. 1/2" x 50' braid