DURABLE LONG-LASTING CAST-IRON PIPE. Our pipes, pipe fittings, nipples and tees are Constructed out of highly durable cast iron which are designed to last a lifetime, and are safe for use with gas, oil, and water. MEETS AND EXCEEDS ALL NECCESARAY STANDARDS. 100% pressure tested for 150 lb. applications- 300 PSI pressure rating. Conforms to ASTM B16.4 standard. Threads conform to ANSI/ASME B1.20.1 SIZE AND QUANTITY. 1" x 3/4" x 1" reducing tee with female thread, compatible with standard 1 in. and 3/4 in. nipples. Single pack. QUIET PERFOMANCE. Cast iron is known for its quiet piping system. So, if you enjoy peace and quiet, this is for you. ALSO GREAT FOR DIY PIPE FURNITURE PROJECTS- EASY AND HASSLE FREE. These industrial pipe parts are great to create your custom pipe furniture, pipe shelving, pipe table legs, industrial décor etc. These pipe fittings don’t require any skills, they are super easy to assemble and install.