Pneu-Edge fittings feature a consistently sharp, single-barb design which provides a tighter grip and seal than standard multiple barbs. Straight connectors, tees, elbows, crosses and couplings are available from 1/16 to 1/12 inch ID tube with threads of 10-32 UNF through ½ NPT and metric M3, M5 and M6. Materials include Electroless nickel-plated brass, stainless steel and aluminum. Recommended for use with polyurethane tubing, these precision machined barbs ensure permanent installation without the need for clamps.