BACKFLOW WATER PREVENTER: Backflow device prevents backflow of contaminated water into potable water supply lines; can be installed horizontally or vertically QUALITY DESIGN: Backflow drain valve features a straight through design to minimize pressure drop EASY TO INSTALL: Backflow assembly valves allow for quick and easy installation LEAD FREE: Backflow relief valve is composed of durable lead free DZR bronze body and brass union inlet SPECS: Backflow regulator features a maximum temperature 140 degrees F (60 degrees C); maximum pressure of 175 PSI