Propress Fitting Copper Coupling – 1/2” Zero Lead Copper Coupling with Stop Press x Press Straight Coupling Pack of 10 – Easy to Install and Reliable Fitting - Amazon.com
NIBCO 1/2 In. x 1/2 In. Press Copper Coupling with Stop (10-Pack) - Power Townsend Company
The Plumber's Choice 1/2 in. Straight Copper Coupling Fitting with Rolled Tube Stop (5-Pack) 0012CCRC-5 - The Home Depot