Additional InformationASSE 1011|CSA B64.2|NSF/ANSI 372|UPC Certified
Marketing InformationThis 3/4 in hose bibb vacuum breaker backflow preventer is designed specifically for wall and yard hydrants to prevent the reverse flow of polluted water from entering into the potable water supply due to back-siphonage. It consists of lead-free body construction, stainless steel working parts, a rubber diaphragm and disc and a draining stem. It permits manual draining for freezing conditions. The maximum pressure is 125 psi.