Heliocol 3/4" Solar Pool Vacuum Relief Valve
Heliocol
Vacuum relief valves should be installed on all systems to facilitate proper drainage. Vacuum relief valves allow air into the system as water exits to equalize pressure with the atmosphere. The valves may be placed on the supply line at least 6 ft. above the pool equipment or near the top of the system at the collectors. Failure to install vacuum relief valves can cause damage to due freezing water and/or collapsed piping. Valve -Vacuum Breaker 3/4" MPT Wht w/.8mm Spring
Price: $32.99