Repairs riser tube leaks in SunLink Pro solar pool heaters. Maintains uniform appearance of the panel. Repair process requires cutting of the rise tube. The plug presses directly into the header. 2 plugs are required per riser tube repair (one at the top header, and one at the bottom header). Compatibility: SunLink Pro solar pool heater panels. The sale of this product is subject to the terms and conditions of sale https://www.solarpoolsupply.com/pages/terms-conditions.