Features of the PoolStar It is the kit includes us the valves and PVC fittings necessary for the installation of a heat pump in swimming pools. This installation is mandatory to allow interventions and maintenance of the heating equipment in the future. It is necessary to place it in the filtration circuit before the water treatment but after the purifier and as specified in the installation instructions of the heat pump. The kit consists of: - 3 PVC ball valves 50 mm in diameter. - 2 PVC elbows of 50 mm diameter. - 2 PVC tees of 50 mm diameter. - 1 tube of PVC adhesive - 1 PVC cleaning solvent. It is compatible with all brands of heat pumps on the market. Also applicable in the assembly of automatic water treatment systems, such as salt chlorinators.