Hayward Hydrostatic Relief Valve 1-1/2" - SP1056
Features and Benefits:
- Helps prevent pool damage due to external hydrostatic pressure beneath the pool shell when pool is drained
- Valve should be replaced whenever the pool is drained
- White ABS, spring loaded, leakproof self-cleaning o-ring seal
- Noncorrosive and nonconductive
- For 1-1/2 and 2 inch pipe size