The extended 5-inch probe on the Watts 40XL-5-150 is required when the tank tapping is located behind insulation or within a fitting that requires additional reach to place the thermal element into the top 6 inches of the tank water

the relay panel is removable to simplify field wiring within the weather-resistant plastic enclosure

making it suitable for both chilled water and high-temp heating loops

The York S1-025-41336-000 Limit Switch is a critical OEM replacement part engineered for high-precision thermal monitoring in residential and light commercial furnaces

the E9-16 is technically identical to and interchangeable with HK-E9-16 and HKN-E9-16 part numbers

Watts R75-02C Regulator mario The extended 5-inch probe onThe Watts R75 02C Regulator is a specialized 1 4" NPT pneumatic pressure regulator engineered for high performance fluid and air control in demanding HVACR and industrial environments. This Parker Watts QUBE series component features a durable zinc body and a balanced poppet design, ensuring rapid response and highly accurate pressure regulation even during fluctuating flow conditions. Capable of handling a 300 PSI maximum inlet pressure, this 1 4