40 amp GFCI required for:
1. Self Clean Gold series hot tubs
2. Serenoity 4300, 4500, 6600 hot tubs
50 amp GFCI required for:
1. Self Clean Platinum series hot tubs
2. Serenity 5900 & 6800 hot tubs
3. Aqua Play & Aqua Sport series swim spa
60 amp GFCI required for:
1. Aqua Trainer series swim spas
