Raypak's Header Return Polymer 130 106A-156A Kit is designed specifically as a replacement part for maintaining optimal performance of your heater. With its durable construction, this genuine 011596F replacement kit ensures a reliable seal and efficient water circulation. Compatible with select Raypak models, it offers an easy installation process to extend the lifespan of your pool heating system. Perfectly tailored for the 106A-156A series, this kit restores functionality, ensuring your heater operates smoothly and efficiently.