GIZZMO ULTRA BLOW THRU

The Ultra Gizzmo is 16 inches in length with 1-1/2 inch and 2 inch threads. It has a plug on one end so you can blow out the skimmer line, through the gizzmo itself. Designed to absorb the expansion of winter freeze-up in short aboveground swimming pool skimmers. It installs in short skimmers found in both aboveground and inground swimming pools. The Gizzmo features a generous bar style grip for easy handling. The Gizzmo absorbs the expansion. The water will crush the Gizzmo instead of destroying the skimmers. It's that simple. No assembly is required.