Check the listing for details. Libra Supply Lead Free 3/4 inch, 3/4'' Copper Press Coupling with Stop, 10pcs. Condition: New. Listed at 45.35 USD. Welcome to Libra Supply Store, we offer a variety of High Quality copper pressure, copper & brass and ABS DWV fittings for plumbing at very competitive prices, and all products will be shipped from our warehouse in Los Angeles to ensure accurate on-time delivery. Please add me to your list of favorite sellers and visit often. Feel free to drop me a line for any questions. Thank you for your business. The Libra Supply Press copper coupling features an inboard bead and EPDM O-ring. Simply applying pressure from a pressing tool tightens the O-ring onto the tube, ensuring a clean, watertight seal in seconds with no flame, solder or flux. The coupling has press connections and a roll tube stop. The fitting provides a method to connect two lengths of tube.