Prevents contaminants from entering the main water supply through sprinkler heads * Not designed to be used as a mainline anti-siphon device * Up to 150 PSI * Heavy-cast brass body * For outdoor use with cold water only mfr: ORBIT UNDERGROUND ATMOSPHERIC VACUUM BREAKER Heavy cast brass body Prevents contamination to water supply Not for use as a main-line 51060 1 IN. VACUUM BREAKER SIZE:1"
