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Find the fit for your FLOWREAD™

Determine pipe size and installation requirements

Get the Best With Our Pool Flow Meters

1 ½-Inch to 2 ½-Inch Pipe Sizes


Safe For Outdoor Use


Horizontal Mount


Check Your Flow Rate

Determine the correct pipe size 

The FLOWREAD™ Flow Meter comes in 3 different models, the R-315 for 1.5" pipe, the R-320 for 2" pipe, and the R-325 for 2.5" pipe. You must use the correct model for the correct pipe size for an accurate flow rate reading.

To determine the pipe size, measure the circumference, or the distance around the PVC pipe on your pool system.

Circumference: 6"
Pipe Size: 1.5"

Circumference: 7.5"
Pipe Size: 2"

Circumference: 9"
Pipe Size: 2.5"

Installation Requirements

The meter's accuracy is affected by disturbances such as pumps, elbows, tees, valves, etc., in the flow stream.  Install the meter in a straight run of pipe as far as possible from any disturbances.  The distance required for accuracy is 5 times the pipe size before the meter and 2 times after the meter.

To make it less confusing, we have created both an infographic and included diameter-specific information below to better explain the installation requirements.

find the right fit for your flow read

1.5 Inches

For the 1.5-inch pipe diameter, you want to have a minimum of 7.5 inches of pipe before your FLOWREAD™ and a minimum of 3 inches of pipe after.

2 Inches

For the two-inch pipe diameter, make sure you have a minimum of 10 inches of inlet pipe and 4 inches of outlet pipe after your FLOWREAD™.

2.5 Inches

If you choose the 2.5-inch FLOWREAD™, you need a minimum of 12.5 inches of inlet pipe and a minimum of 5 inches of outlet pipe available.

Learn More About the FLOWREAD™


How Our FLOWREAD™ Works


FLOWREAD™ Energy Savings


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