3kW Balboa heater with an element made from either Incoloy 800 or Titanium, for spas that use the Balboa M7 control system.  This heater is compatible with the vast majority of Balboa M7 control systems, including the GS series and the GL2000 (but not the GL8000).

Dimensions
Length: 381 mm (without connectors and gaskets)
Usually connected to 2-inch (60,3 mm) or 63 mm pipe

The Balboa M7 (or Millenium 7, as it was originally known) control system uses two very sensitive temperature probes inside the barrel of the heater itself to detect the rate of water flow. This makes it much more reliable, in our experience, than competitive systems that use failure-prone moving parts instead, such as pressure switches or flow switches.

The heater is supplied with 2-inch unions and Balboa gaskets (only part of the union is visible in the photo).  The probes and cables are also included.  It is very easy to replace a Balboa M7 heater; it will probably take you less than 10 minutes.

Warranty
1 year, provided directly by tubs.fr

Balboa Part numbers
Incoloy 800: 58118 or 58107
Titanium: 55626