Lead Free Brass Pipe Fitting, Hex Bushing, Class 125, 1" NPT Male X 1/2" NPT Female Hex bushing for connecting pipes of two different sizes Male and female National Pipe Taper (NPT) threads for connecting two pipes Made from lead-free brass for higher corrosion resistance than steel Relative softness of metal enables tighter seals and greater ease in installation Manufactured to standard ASTM B-584-06 for lead-free quality assurance