Lennox 14M88 Tubing THPU32HP7Y protecting the copper-fin heat exchanger

protecting the copper-fin heat exchanger and internal burner components from thermal stress caused by restricted airflow

maximizing close-off capabilities

35" WC trip point

and 3155 series controls

though vertical mounting with downward flow is often preferred to prevent oil trapping

Lennox 14M88 Tubing THPU32HP7Y protecting the copper-fin heat exchangerMaintain precise combustion control and system safety with the Lennox 14M88 Pressure Switch Tubing. Engineered as a direct OEM furnace replacement part, this high grade industrial tubing is critical for the accurate transmission of air pressure signals between the draft inducer motor and the pressure switch assembly. Designed for long term resistance to heat and pneumatic fluctuations, the 14M88 tubing ensures your HVAC system diagnostics remain