Seametrics :: MJHR-100-5G | Hot Water Meter - Pulse Output (Reed Switch) - 1 Inch - 5 Gallons per Pulse
DAE AS250U-100 1 inch Water Meter, Measured in Gallon + Couplings 730707517968 | eBay
1" Multi-Jet Brass Totalizing Water Meter (Pulse Output) | PRM
Neptune T-10 Potable Water Meter (5/8, 3/4 and 1 Inch)
1" Multi-Jet Brass Totalizing Water Meter (Pulse Output) | PRM
1" Home water meters for sale by Flows.Com!
Water Flow sensor Hall Sensor Switch Flow Meter DN25 brass water meter Industrial turbine flowmeter 1 Inch water flow sensor|Integrated Circuits| - AliExpress