these are simply variations of the same Sensus part number used in different inventory systems

This 1/8" OD x 22 3/4" aluminum pilot tube features factory-installed compression fittings

Key Benefits for Contractors: Optimized Compatibility: Designed specifically for use with Danfoss EVR 2 through EVR 40 solenoid valves

ensuring a tight seal under normal operating conditions while opening at less than 1/2 inch of vacuum

Automatic Reset: Eliminates manual intervention by resetting the circuit once the system cools

Johnson Controls V-3752-6023 Spring Kit these are simply variations ofSpring Kit, 3 6 Psi Spring Range, 5 16" Stroke