Wide ApplicationThis mount shower faucet installation kit is designed for wall mounted type commercial faucet, including exposed shower system, outdoor shower system,thermostatic bar valve shower mixer,claw foot bathtub shower faucet in bathroom , kitchen or outdoor to convert in-wall mount to surface mount Generally CompatibleThe inlet of this 90 degree angled is NPT 1/2 male threads for water line, and the outlet is G 3/4 male threads used for connecting most wall mounted type commercial faucets Leak Freeits one-piece full assembled construction prevents it from leaking Easy to installInstallation of this quick fitting elbow doesnt need to break the wall as all joints are outside the wall. Straightforward for any possible change for shower valve.Ideal for you to DIY your own quality shower system Stable and DurableThe thread adapter works like a fixing bracket,which can be used on any kind of wall construction, like wood ,stud,plaster,brick,etc, giving extra strength and support to keep you safe. Delivery quantity: 2 pieces