This 3/4" x 3/4" copper cap is from Quick Fitting. It is a push-to-connect fitting meaning it installs in seconds on copper, PEX, PE-RT, and CPVC. The fitting is removable and reusable. No glue or flames are required. Certified lead-free. Quick Fitting part number CH826R.
EC Part Number: #19230
Manufacturer Number: CH826R
Manufacturer: Quick Fitting