What is the difference between 26B1A0E06 and 26B1AOE06

the probe should be centered in the air stream

Is the P145NCB-82 compatible with my Carlyle compressor

Engineered with a microprocessor-based architecture

provides essential protection against catastrophic failure by monitoring both thermal and pressure conditions

Watts 0121549 Valve 30067439-890 What is the difference betweenThe Watts 0121549, also identified by model LF174A 1 1 2 150, is a high capacity boiler pressure relief valve designed for heavy duty commercial and industrial hot water heating applications. This ASME rated relief valve features a lead free copper silicon alloy body and 1. 5 inch NPT threaded female connections, engineered to handle a steam discharge capacity of up to 7,630,000 BTU hr. As a veteran technician knows, the Watts LF174A series is