Backflow Preventer With Water Meter and Relief Valve Threads_GHT x GHT 5 inch NH / NST

5 inch NH / NST which is very common

Global type "D" brass 1 1/2 inch female camlock (Cam & Groove) coupler to 1 1/2 inch female NPT threads

In addition there are two different sized slots incorporated into the wrench handle for use as a gas cock shut off

11 1/2 threads per inch

This pump discharge hose is constructed from red PVC and reinforced by polyester yarn

Backflow Preventer With Water Meter and Relief Valve Threads_GHT x GHT 5 inch NH / NSTDesigned for use in measurement of water from a fire hydrant or other nonpermanent installation where flow is in one direction only. Protects against both backsiphonage and backpressure of contaminated water into the potable water supply. NH (NST) adapters allow for connection to 2 1 2 inch fire hydrant (inlet) and 2 1 2 inch fire hose (outlet). Assembly shall provide protection where a potential health hazard exists. Meter Meets the Requirements of: