Lasco 05-1771 Self-Draining Backflow Vacuum Breaker, Female x Male

Product Details

Lasco 05-1771 backflow preventer self draining vacuum breaker with fine thread, replacement part for arrowhead 490BPF and 480 series. Use Arrowhead's self draining vacuum breaker on their 490BFP and 480 series. Arrowheads freeze tector represents a revolutionary breakthrough by allowing freeze protection combined with health protection from possible contaminated water sources caused by back-siphonage or backflow. For optimum freeze protection, vacuum breaker should be at an angle to level ground. When using a self-closing nozzle, always relieve pressure in the hose upon water shutoff to activate drainage of hydrant.