The Super New GIZZMO is 16 inches long and installs in the big deep skimmers of most in-ground swimming pools. The Super New GIZZMO has both 1 1/2 and 2 inch threads and features a generous bar style handle for your ease of use and convenience. The double threads offers convenience by accommodating most skimmers with one item. For a professional fit, the GIZZMO can be used with teflon tape. The GIZZMO is designed for single season use.