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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28
A pressure relief valve (PRV) is recommended in all installations and is mandatory in any installation in which the water flow can be restricted between the heater outlet and the pool/spa
It features a CPVC body
049″ standard
Inspect the union and gasket during seasonal service for cracking
Swimline RipStopper 21' Round Above Ground Winter Pool Cover, 4' Overlap | RIG21 Spa Light A pressure relief valve (PRV)Swimline HydroTools RipStopper Winter Pool Cover 21 ft Round Above Ground (RIG21) The Swimline HydroTools RipStopper RIG21 is a heavy duty solid winter cover made for 21 ft round above ground pools. Its tightly woven, rip resistant polyethylene construction helps keep leaves, dirt, and winter debris out of the pool while reducing spring cleanup. Key Features Fits: 21 ft round above ground pools Solid cover helps block sunlight and keep debris out
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