Hayward SP1056 Hydrostatic Relief Valve For Main Drain

Original price was: $23.99.Current price is: $16.79.

Part numbers SP1056, 600-2100B
Replaces: 55-150-1004, HAY-25-1518, HAYSP1056
Hydrostatic relief valve for main drain
Prevents damage from external pressure when pool is drained
Replace valve whenever pool is drained
White ABS material
Spring loaded
Leak proof, self-cleaning O-Ring seal
Noncorrosive and nonconductive
Fits 1.5″ and 2″ plumbing

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Hydrostatic Relief Valves help prevent pool damage from external hydrostatic pressure beneath the pool shell when the pool is drained. Hydrostatic relief valves should be replaced every time the pool is drained. This valve is made with white ABS material, is spring loaded with a leakproof self-cleaning o-ring seal and is noncorrosive and nonconductive. This valve fits 1-1/2 and 2 inch plumbing.