The D-30200P Blue White Flow Meter is great for closed pipe installation. Easy to read dual scale (GPM/LPM), on both sides of the meter body. Install vertically or horizontally to fit your needs. One piece machined acrylic meter body. Corrosion resistant internal parts. Calibrated pitot tube. Ships with gasket seal and mounting clamps. Calibrated for use on PVC or Copper Pipe. Low Flow units offered. A great value - top quality at unbelievable prices. MTR1V 40-150 GPM 2.00 PIPE DWN