TM Series PVC Water Meters with Computer DisplayTM Series PVC Meters are designed for use in water applications. Easy to install and comes with NPT fittings. Features and Benefits: Displays in gallons, litres and cubic feet Indicates Batch, Cumulative Totals and Rate of Flow Uses standard AAA batteries Flow Rate 1 2" 1 10 GPM (3. 8 37. 9 LPM) 3 4" 2 20 GPM (7. 6 75. 7 LPM) 1" 5 50 GPM (18. 9 190 LPM) 1 1 2" 10 100 GPM (38. 0 380 LPM) 2" 20 200 GPM (76 760 LPM)