Description: 【City Water Connection For RV】: The rv city water inlet with check valve is with 3/4'' NH(GHT) female into 1/2'' NPT male thread, an extra flexible rubber dust plug for replacement 【Brass Material】: The rv city water inlet replacement is brass, keeping your water secure to drink. Metal construction allows the check valve backflow preventer to withstand high pressure, temperature to and frequent daily use 【RV Fresh Water Inlet】: Easy to install this rv water fill inlet in your RV's fresh water system to prevent backflow and keep nasty contaminants out of your RV's fresh water plumbing, the rubber cap protects connection point from dust when not in use 【Widely Application】: RV water inlet replacement use for many trailer marine RV connection to city water hoses, keeps contaminants out of your fresh water system, Easy grip knob lets you easily attach and detach your hose 【Important】: City water fill inlet flange, important: If the angle of the flange is not installed properly, it will result the valve easily to be damaged because of the incorrect installed physical angle. Thus, please do make sure they are well setttled Specification: Material: PP Brass  Size Chart: Diameter: 12cm/4.72inch Package Size: 14cmx10cmx9.5cm/5.51inchx3.94inchx3.74inch  Package Includes: 1 Water Valve 3 Screw 1 Check Valve 1 Plug Net Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.