Above-ground 9" Skimmer Guard - Protects Skimmer from Expansion from
Protects your skimmer from freeze damage.
Just place the Skimmer Guard into your skimmer to absorb any expansion
caused by freezing water. The freezing water will actually compress the
Skimmer Guard instead of expanding outward and cracking your skimmer.
The bottom of the Skimmer Guard fits either a 1-1/2" or 2" internal