In Ground Pool Winter Skimmer Freeze Guard
Price: $ 4.99
Protect your skimmer from costly freeze damage.
Just place the Skimmer Guard into skimmer to absorb expansion caused by freezing water. The freezing water will actually compress the Skimmer Guard instead of expanding outward and cracking the skimmer housing. The bottom of the Skimmer Guard fits either a 1-1/2" or 2" internal thread.