One-Way Winter Pool Valve lets you winterize your pool without completely or partially draining the water
Valve designed to let water out and prevent it from coming back in for winterization
Replaces the "eyeball" return fitting when you're ready to winterize
Lets you blow out the lines while it's in place
Durable design lasts longer than traditional rubber pool plugs
Features the Buna-N O-ring to create a tight, waterproof seal
For use in above-ground and in-ground pools
Can be used in conjunction with the Aquador winterization skimmer cover
To winterize, snap on Aquador, install the one-way plug into your wall return, add antifreeze to the return lines and blow out the pipes
1-1/2-in. diameter
Fits threaded wall return and pool cleaner fittings

GIGIT INC. - One-Way Winterization Pool Valve, 1.5" Wall Plug