Replacement Flo-Thu Hot Tub Spa Heater Element: 5.5kW, 4.5kW or 4kW - Flow Through - Made in USA
- Universal Incoloy 800 Spa Heater Element.
- Fits standard 2″ diameter hot tub heater manifold as illustrated.
- Fits Balboa M-7, Brett Aqualine, Hydroquip and many others.