Step 1:

Choose Measurement - English or Metric

Step 2:

Choose - Row Gap OD or Row Gap ID

Step 3:

Select Pipe Size

Step 4:

Enter Slot Width

Step 5:

Enter Slot Length OD or Slot Length Inside

Step 6:

Enter Slot Spacing

Step 7:

Enter Number of Rows

Step 8:

Press the Calculate Button And Your Answer Will Appear

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MM OD
MM
MM
MM