KOOTANS 4pcs High Quality Solid Brass Reducing Hex Nipples, 3/8 to 1/4 NPT Male Pipe Adapter Brass Pipe Hex Nipple Fitting Couplings<br> <br> <br> <b>★ Material:</b><br> Heavy Duty brass, strong and durable, threads are deep and accurate.<br> Operating temperatures range from -65°F to +250°F (-53°C to +121°C).<br> 1200 psi operating pressure.<br> <br> <br> <b>★ Size:</b> 3/8 male to 1/4 male NPT thread hex brass nipple, also suitable for 5/8 inch or 1/2 inch thread pipes.<br> <b>PLEASE NOTE, brass pipe nipples are the USA NPT standard thread, with 60° taper , so 3/8 NPT measured value is about 5/8 inch, 1/4 NPT measured value is about 1/2 inch.</b><br> <br> <br> <b>★ Features:</b><br> 1. Used to connect female pipes with different diameters, or extending the pipe length. NPT Female and male thread with hard connect way, it does not need sealing for most situation.<br> 2. This reducer nipple fitting is made of high quality solid brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.<br> 3. Designed for use in air, water, oil, gas, etc.<br> 4. These 3/8 to 1/4 npt brass nipples contain low-lead, not recommended for drinking water.<br> <br> <br> <b>★ Package Include:</b><br> 4 pieces 3/8 to 1/4 NPT brass hex nipples.