The Bungee- Plug - Blow-out Plug for In Ground Pools
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The ONLY blow-out plug you'll ever need for the return lines on an in-ground swimming pool!
Fits 98% of all eyeball returns. Allows you to easily blow water out of the underground plumbing lines WITHOUT having to drain water out of the pool!
The black bungee plug retracts when pressure from water isn't being blown from the backside, sealing the return opening!
Check out this video of how it works! The Bungee-Plug