Wall Mount Commercial Sink Faucet Installation Kit Material: made of high quality brass, brass has a strong structure, high pressure strength and long service life. Kitchen sink faucet mounting kit for cubicle sinks, prep sinks, utility sinks, mop sinks or commercial wall mounted sinks. Elbow adapter 90 degree design saves installation space and extends the service life of the water supply pipe (avoiding the problem of pipe bending leading to breakage) Connector size: G1/2 male (1/2 IPS male) Note: Elbow adapter ends in G1/2 instead of 1/2" NPT. Easy to install : The longer end connects to the faucet and the shorter section connects to the water supply pipe. Remember to use Teflon tape when installing to avoid leakage. WALL MOUNTED FAUCET INSTALLATION KIT: The elbow adapter has a G1/2 thread size (also known as 1/2 IPS), note that it is not an NPT thread. For commercial wall mount faucets with G1/2 female thread ends. Easy to install: connect the longer end to the back of the wall mounted commercial faucet and the shorter end to the water supply line, then secure it with the lock nut, use tape to effectively prevent leakage during installation Material: made of brass, one-piece structure, corrosion-resistant and durable. SPACE SAVING: Only 1.5 inches of space behind the sink is required for assembly, the 90 degree design of the elbow adapter saves installation space and prolongs the life of the water supply pipe (avoiding excessive bending that may cause breakage or fracture). Package: 2pcs 90 degree elbow fittings, 2pcs locknuts, 2pcs rubber washers, 2pcs stainless steel washers and 1 roll of anti-leakage tape.