Conbraco's newest series of Apollo® check valves are equipped with 2-inch copper tubing at both ends to allow installation in seconds using the Viega no-solder ProPress™ crimping system. Designated the 61-600-A0 Series, the new bronze check valves are available in 1⁄2-inch through 2-inch sizes and feature a spring loaded check for faster seating action. With their bubble-tight shutoff, the valves are ideal for gas service.