Hydro-Quip Balboa Heater Assembly w/ M7 Sensors | 4kW | 220V | 58104

Direct-fit 4.0 kW Heater for Balboa M7 Systems

The Hydro-Quip Balboa Heater Assembly with M7 sensors (SKU 26-58104-K) is a drop-in replacement heater designed for Balboa Plug N' Click M7 control systems. This robust assembly delivers 4.0 kW of heating power at 220–230V and features a stainless steel heater tube sized for standard spa plumbing. It ships with integrated M7-style temperature sensors and the mounting hardware needed for most Balboa-compatible installs, making it a practical option for reliable, fast spa water recovery.

Key Features

• Power: 4.0 kW heating element rated for 220–230V operation.

• Compact dimensions: approximately 15" between unions with an ~2" tube diameter for common spa manifolds.

• Construction: 304 stainless steel heater tube for corrosion resistance and long life.

• Integrated sensors: includes two M7-style temperature sensors (replaces Balboa part 32016) for accurate control with Balboa M7 electronics.

• Plumbing and hardware: supplied with 2" split nuts and slip fittings; optional 1.5" reducers are available for smaller plumbing.

• Compatibility: direct replacement for Balboa Plug N' Click M7 heater assemblies and listed as a replacement for several Balboa part numbers (for example, 58303 and 58306).

• Origin: manufactured by Hydro-Quip in the USA.

Why professionals choose this heater

Technicians and hot tub owners choose the 26-58104-K for its straightforward, reliable performance and easy installation. The integrated M7 sensors eliminate sensor swapping, while the stainless-steel element and standard union spacing minimize plumbing work. Whether replacing a failed element or upgrading an older assembly, this Hydro-Quip unit restores efficient heat-up times and consistent temperature control for Balboa M7-equipped spas.