This part is specifically sized for systems requiring a 1/2" suction and 7/8" discharge line

The White-Rodgers 90-340 Relay is a heavy-duty 2PDT 24V switching relay engineered for reliable performance in fan control centers and general-purpose HVAC applications

Featuring a robust brass body and a durable EPDM diaphragm

the SWT3114 is also rated for monitoring non-corrosive pressure environments in various HVACR auxiliary circuits

which is a vital safety protocol for identifying airflow or combustion issues

Trane SEN0335 Flow Sensor R-407C This part is specifically sizedThe Trane SEN0335 Flow Sensor (OEM Part # SEN00335) is a high precision airflow monitoring component engineered for commercial and residential HVAC systems. Unlike basic mechanical switches that only provide binary on off feedback, this thermal flow sensor utilizes advanced sensor tube technology to provide continuous, real time data on air velocity and volume within the ductwork. This constant feedback loop is essential for HVAC system diagnostics,