Sizes are Inside Dimension of Pipe. Add 1/8" To Determine Outside Dimension of Pipe.
3/8" & 1/2" ID Fittings Wll Fit Pex or Polybutylene Tubing Only.
3/4" ID Will Fit Pex Only.

Step 1 - Slide Nut Over Tubing

Step 2 - Slide Insert Into Tubing

Step 3 - Slide Fitting Into Insert Flush With Edge Of Fitting

Step 4 - Slide Onto Fitting & Tighten Nut Firmly.

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