【Widely Use】These fittings would provide quick connecting solution for pipe to pipe, pipe to fitting. They can served well as pipe extension connectors for shower head, tub spout, outlets, plumbing line. These brass plumbing pipe fitting adapters can also used with grease, fuels, LP and natural gas, refrigeration, instrumentation and hydraulic systems in low and medium pressure pipe line connections 【High Quality Material 】Brass for corrosion resistance,ductility at high temperatures,and low magnetic permeability 【Long Time to Use】Machined Brass material make it strongest construction for prolonged service life 【NPT THREADS】: American National Pipe Taper (NPT) threads, 1/2 NPT male pipe x 3/4 NPT female pipe, 2-pack pipe fititngs with 1 sealing tape 【PREMIUM MATERIAL】: High grade solid brass, strong and wear resistant, more durable than iron and iron galvanized pipe fittings, solid brass can withstand up to 100 °C (212 °F) NICOLEKAY 2-Pack Brass Pipe Fittings, 1/2" to 3/4" Pipe Reducer Adapter, 1/2" NPT Male Pipe x 3/4" NPT Female Pipe Fitting