SPECIAL ORDER ITEM. Review Returns Policy before purchase. The Matco-Norca Copper Press Reducing Coupling collection offers a modern and efficient solution for plumbing systems. Designed with an inboard bead and an integrated EPDM O-ring, this coupling ensures a secure and reliable connection. By simply applying pressure from a compatible pressing tool, the O-ring tightens onto the tube, creating a clean and watertight seal in seconds. This advanced method eliminates the need for flames, solder, or flux, making the installation process safer and significantly faster. The coupling is specifically engineered to provide a seamless transition when connecting a larger size tube to a smaller size tube, maintaining system integrity and flow efficiency.