Threaded design ensures secure fit in standard 1.5 inch return lines for effective blockage
Prevents ice expansion and freezing damage to pool plumbing, reducing maintenance costs
Easy installation and removal simplifies seasonal pool care
Compatible with all skimmer and return lines for versatile use
The winterizing plug is used as a final step in winterizing your above ground pool's return lines, and can prevent costly damage from ice expansion during the winter months. Simply screw the winterizing threaded plug into the return line to prevent damage from freezing water during the winter months.