1. Cut the tubing so the ends are square. Remove the nut from the fitting and slide over the tubing.
2. Firmly press the tubing onto the flair of the fitting until the tubing rests against the fitting flange. When using ¾” polybutylene tubing, a poly insert adapter must be inserted into the tubing prior to insertion of the tubing onto the fitting.
3. Slide the nut to the threads and tighten securely onto the fitting.
4. To remove the fitting, unscrew the nut and slide the fitting out of the tubing.