Gecko M-Class Spa Replacement Control [3 Pump] [4.0kW] (3-74-7036) circuitboards while the Ultima fit preserves

while the Ultima fit preserves the original pump platform relationship

and this Essex capacitor is designed with a 200 to 240 MFD range for 115 volt applications in an approximate 1-7/16 inch by 2-3/4 inch format

When the original assembly wears out

Grid pack for compatible Sta-Rite S7D75 37 square foot systems

Gecko M-Class Spa Replacement Control [3 Pump] [4.0kW] (3-74-7036) circuitboards while the Ultima fit preservesA 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