Water Meter GPI TM 200-N 2 inch.PVC water meter with NPT and local electronic LCD computer that reads Gallons, Litres and cubicfeet.Use Water and mild chemicals.This Economy water flowmeter is an ideal alternative to traditional water meter. The TM series water meter otfer flow rate and flow total indication that help monitor water flow in waste water application, wwater treatment and sub metering applications the battery powered electronic display TM series water flowmeters are calibrated to read in gallons and liters per minute.These water flowmeters also have two total in which case one is resettable and the other gives you cumulative flow totals. These electronic water meters are available in 1/2 in. 3/4 in. 2 in. 3 in and 4 in models.