ensuring exact port alignment and thread matching for suction and discharge lines

the A28AA-20 is the designated replacement

the 8105-029BX serves as the official updated successor to the S8105-029 legacy model

which forces the motor to work harder to maintain airflow

and 48-frame housing for industrial-grade durability

Reznor 115151 Gasket R-134A ensuring exact port alignment andThe Reznor 115151 Gasket is a critical OEM replacement part engineered for high temperature sealing in industrial and commercial heating systems. Designed specifically as an inner exhaust box cover gasket, this component ensures a gas tight seal to prevent flue gas bypass and maintain optimal combustion efficiency. Measuring 1 1 2" x 1 8" x 11", the 115151 is a standard fit for many Reznor gas fired unit heaters, providing the necessary thermal