Feherguard Threaded Winterizing Plug w/ O-Ring

The Feherguard Threaded Winterizing Plug w/ O-Ring is an upgraded alternative to traditional skimmer gizmos, offering enhanced freeze protection during pool winterization. This plug threads directly into the bottom of your skimmer to seal the return line and prevent water from entering.

Now equipped with a durable O-ring, this version provides a tighter, more reliable seal, helping to prevent leaks and improving overall protection. It also features female threading on top to securely hold a standard 500ml water bottle, which absorbs freeze expansion and protects the skimmer body from cracking or pressure-related damage.

Easy to install and brightly coloured for visibility, this plug-and-O-ring combo is a smart and efficient way to simplify winter prep while safeguarding your skimmer all season long.

Details:

• Threaded
• Yellow color
• 1-1/2″ diameter
• O-ring included