3/8 X 3/8 Push In X Male Iron Pipe AdapterThe 3 8 x 3 8 Push In x Male Iron Pipe Adapter connects push in tubing to 1 4" male iron pipe threads with a quick, tool free, leak proof installation. Durable and reliable, its ideal for fluid, air, or gas systems in industrial and commercial applications. Specification Details TYPE Male Iron Pipe Adapter DESIGN Full Flow Design, provides up to 60% more flow area than conventional fittings. MATERIAL Brass for durability, long lasting and reliability