Model # NW305
PROTECT 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 thread.
Comes in 2 sizes
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is there a blowout hole in it? if yes, then what is the size of the hole and what blowing device can one use to blow air though it to blow water out of lines?
Hi, The Skimmer Guard does have a blowout hole and can not be used to blow your lines.