Push Connect Fittings
Push connect fittings are designed with two different retaining hairpin clips. The fittings used with 3/8 inch and 5/16 inch diameter metal tubing use a hairpin clip. Clips should be replaced whenever a connector is removed.
The fittings used with 1/4 inch nominal diameter metal tubing use a duck-bill clip.
Each type of fitting requires different procedures for service. Clips should be replaced whenever a connector is removed.