AERCO Boiler and Water Heater 59138 Air Filter 323080-701 always verify that the 355

always verify that the 355 PSIG pressure rating and internal oil-return orifice diameters are compatible with the specific lubricants and pressures of your application

What air connection fittings are needed

Common Questions How do I test the 117-7441 for failure

Optimized Motor Efficiency: Supports the full functionality of ECM motors for improved airflow and energy savings

18" WC Actuation: Ensures the combustion blower provides sufficient draft before allowing gas valve activation

AERCO Boiler and Water Heater 59138 Air Filter 323080-701 always verify that the 355The AERCO Boiler and Water Heater 59138 Air Filter is a high performance 6" K&N replacement air filter engineered to maintain peak efficiency for your commercial heating systems. Designed as a precision fit HVAC induction filter, this component ensures maximum airflow while providing superior washable air filter technology. By effectively trapping particulates, the AERCO 59138 prevents combustion internal debris buildup, protecting sensitive internal