Description Product OverviewThese black malleable iron fittings are leak proof tested and threads are precisely machine tooled for easy connections to natural gas, propane, oil, and air applications.Product DetailsConnection Type: ThreadedHex Size: 1.45 inLength: 1.72 inMaterial: Malleable IronNominal Size: 1/2 inOperating Temperature: -4 to 572 deg FPressure Rating: 300 PSISchedule Rating: 40FeaturesThe pipe unions have a black finishThe pipe unions are UL and FM certifiedThe pipe unions meet ASTM and ASME standardsThe pipe unions are used for extending and connecting male pipes