How do I confirm this is the right replacement for my air handler

Utilizing standard 1/4-inch quick-connect terminals

While it provides the mounting structure

and differential static pressure

the issue typically lies with the PopTop actuator motor rather than the internal seals

Raypak 005299B Temperature Sensor Els PW 17895 How do I confirm thisThe Raypak 005299B Temperature Sensor is a critical OEM replacement part engineered specifically for technical compatibility with Raypak RP2100 series non digital (analog) heaters and IID atmospheric heaters. This 3 wire electronic temperature sensor provides precise thermistor data to the control board to monitor water temperatures and prevent overheating conditions. Designed for units manufactured between 1993 and 1998, including Raypak R185, R265,