Coates 61L/E-6 Hi-Limit Sensor [5/16" dia] [12"] [SPST] [Screw Terminal] (22003820) pumpparts This component supports balanced water

This component supports balanced water flow while helping reduce unnecessary wear on surrounding parts

That combination matters because a well-matched heater should restore both warmth and system confidence

Correct application matching matters because a properly selected wet end should make the pump feel normal and dependable again

Precision fit for AquaFlo systems

A pre-filter can be a smart addition when the goal is to improve incoming water quality before it reaches the spa

Coates 61L/E-6 Hi-Limit Sensor [5/16" dia] [12"] [SPST] [Screw Terminal] (22003820) pumpparts This component supports balanced waterA hi limit sensor helps protect the heater by responding when temperature conditions move beyond the intended operating range, and this Coates sensor is designed for compatible 61L and E 6 applications using a 5 16 inch diameter probe, 12 inch length, SPST operation, and screw terminal connection. When a safety sensor becomes unreliable, the entire heater can lose an important layer of operating confidence. The probe size, 12 inch lead relationship,