Hayward GLX-PCB-TROL-RJ Main PCB Replacement for Hayward Goldline Aqua Trol Salt Chlorine Generators Main pcb replacement Fits hayward goldline aqua trol salt chlorine generator models aq-trol-rj, aq-trol-rj-tl, aq-trol-hp, aq-trol-hp-tl Weight 3 pounds