This Balboa 4.0KW 230V flow-through heater assembly delivers reliable hot water heating for residential spas and hot tubs. Operating at 230 volts with 4000 watts of heating power, this OEM Balboa heater features the proven flow-through design that efficiently heats water as it circulates through your spa's plumbing system. The compact construction fits standard spa equipment bays while providing the heating capacity needed for most mid-size to large residential hot tubs.
At Bubbles Supply, we guarantee this heater is the exact fit for your Balboa heating system, backed by our 1-year warranty and same-day shipping commitment. This genuine OEM replacement resolves common heater fault codes including HH (high heat) and OH (overheat) errors that can shut down your spa. Professional installation is recommended to ensure proper electrical connections and plumbing integration—always verify your spa's voltage requirements and amp draw before installation.