1.5" Yellow Threaded Winterizing Plug with O-Ring

Protect your pool’s plumbing from severe freeze damage with our 1.5" Yellow Threaded Winterizing Plug. Designed to replace standard eyeball return fittings during winterization, this plug creates a tight seal in return lines, skimmers, and wall fittings. When paired with non-toxic pool antifreeze, it prevents water from refilling your pipes and cracking them during freezing temperatures.

Key Features

• Airtight & Leak-Proof Seal: Includes an O-ring (or rubber gasket) to ensure a tight seal that prevents water from re-entering purged lines.
• Universal 1.5" Threading: Fits standard 1.5-inch female-threaded pool return fittings, wall inlets, and skimmers.
• High-Visibility Design: Bright yellow plastic makes the plug easy to spot and identify during spring opening.
• Corrosion & Chemical Resistant: Built from heavy-duty, weather-resistant plastic that withstands freezing temperatures and harsh pool chemicals.
• Quick & Easy Installation: Simple threaded design allows for tool-free installation and removal.

How to Use

1. Remove Return Eyeballs: Unscrew the directional eyeball fittings and locking rings from your pool return jets.
2. Clear the Lines: Blow out or drain remaining water from the return plumbing.
3. Add Antifreeze & Seal: Pour pool antifreeze into the line if recommended, then hand-tighten the 1.5" yellow plug directly into the fitting until snug.