Fire Hydrant Meters are designed to measure a wide variety of cold potable water flows from fire hydrants where flows are in one direction. These Meters are light weight portable units designed for temporary installations. 
Features:
Engineered and manufactured to provide long-term service and operate virtually maintenance free
Complies with AWWA C701 Class II performance standards
2.5" swivel connection inlet, 2.5" threaded outlet (standard configuration)
Outlet is changed to 2" when attached with with RFP backflow