Rain Bird SBE-075 SB Series Spiral 3/4-Inch Male NPT by 1/2-Inch Barb Elbow Fittings Spiral barb fittings are made of robust acetyl material to make connecting swing pipe fast and easy Easy twist-in insertion no glue or clamps needed for installation Aggressive barb lip makes a secure connection that is less likely to leak Extended length and aggressive barb lip prevent blow outs, reducing likelihood of contractor call backs Use with swing pipe as a flexible swing joint assembly for sprays and rotors