Gecko M-Class Spa Replacement Control [3 Pump] [4.0kW] (3-74-7036) circuitboards When the original assembly wears

When the original assembly wears out

That keeps the repair efficient while restoring cleaner control behavior and internal function

and more efficient maintenance

A spring is one of the internal parts that helps a dial valve feel responsive and mechanically complete

When the main body of the filter begins to fail

Gecko M-Class Spa Replacement Control [3 Pump] [4.0kW] (3-74-7036) circuitboards When the original assembly wearsA replacement spa control helps restore coordinated equipment management in a compatible M Class setup, and this Gecko version is designed for 3 pump applications with a 4. 0kW heater using the 3 74 7036 reference. When a main control pack becomes unreliable, the spa can lose synchronized management across pumps, heating, and related features. The 3 pump design gives this unit practical value because replacement control packs work best when they match