5/8" to 3/4" Hot Water Meters 
  Meter Size
Characteristic/Dimension 5/8 x 1/2" 5/8" x 3/4" 3/4"
Flow Rating (GPM) 20 20 30
Continuous Flow (GPM) 10 10 20
Normal Flow Range (GPM) 1-20 1-20 2-30
Low Flow (GPM) 1/4 1/4 1/2
Maximum Working Pressure (psi) 150 psi
Maximum Working Temperature 194 °F
Length (inches) 7.5 7.5 9
Height (standard register & lid in inches) 4.125
Height (bottom to center line) inches 1.1875
Width (inches) 3.75 3.75 3.75
Width (side-mounted DIALOG® unit) 4.5
Weight (Ibs) 3.75 4 4.25
Packed to Carton 12 12 8
Carton Weight (lbs) 46 50 35

GREAT PLAINS METER INC.