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Fitting Sizes / Measuring Your Sprinker Fittings
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How to Estimate Pipe Size
To determine the nominal size of a pipe, wrap a string around the pipe and compare its length to the chart below:| Nominal Pipe Size |
Approximate String Length in Inches | ||
| PVC Pipe | Copper Pipe | Galvanized Steel | |
| 1/2" | 2 5/8" | 2" | 2 5/8" |
| 5/8" | - | 2 3/8" | - |
| 3/4" | 3 1/4" | 2 3/4" | 3 1/4" |
| 1" | 4" | 3 1/2" | 4" |
| 1 1/4" | 5" | 4 3/8" | 5" |
| 1 1/2" | 6" | 5 1/8" | 6" |
| 2" | 7 1/2" | 6 3/4" | 7 1/2" |
Courtesy of Hunter Industries.