making it a staple for contractors managing residential and light commercial HVAC systems

40VA Load Capacity: Optimized for commercial control circuits

Standardized Fit: Black color-coded spring allows for rapid identification during field service and inventory management

The kit includes dual-length electrode stems (long and short) with high-temperature ceramic insulators

Lochinvar & A.O. Smith 100278231 Coupler 30067439-890 making it a staple forThe Lochinvar & A. O. Smith 100278231 Coupler is a precision engineered pump coupler replacement designed for high performance hydronic and domestic hot water systems. As a critical mechanical link between the motor and the pump assembly, this genuine OEM part ensures smooth torque transmission while compensating for minor shaft misalignments that can lead to premature bearing failure. This specific model is the direct technical replacement for the