Genuine Balboa Heater Tubes - These tubes come complete (UK Spec) with the elements already fitted, new seals and either sensors or a pressure switch factory fitted. Balboa only make 3 types of tube, with the option of either 2 or 3kw elements added. The difference between the 3 tube types is as follows: GS/GL fit plastic control boxs and have studs to mount, M7 have no studs and are mounted by metal straps and pressure switch tubes have - pressure switch fitted.
Genuine Balboa Heater Tubes - These tubes come complete (UK Spec) with the elements already fitted, new seals and either sensors or a pressure switch factory fitted. Balboa only make 3 types of tube, with the option of either 2 or 3kw elements added. The difference between the 3 tube types is as follows: GS/GL fit plastic control boxs and have studs to mount, M7 have no studs and are mounted by metal straps and pressure switch tubes have - pressure switch fitted.
