Reznor 17909 Fan Blade 326070-701 it provides precise downstream pressure

it provides precise downstream pressure control to protect sensitive fixtures

making it a direct-service replacement for compatible furnace draft systems

Durable Construction: High-grade brass and stainless steel components provide corrosion resistance and long-term mechanical reliability in hydronic loops

Industrial Safety: Equipped with an internal pressure-sensitive interrupter to prevent casing rupture under fault conditions

this is the individual 1054516-R Turbulator insert designed for the output side of the heat exchanger

Reznor 17909 Fan Blade 326070-701 it provides precise downstream pressureThe Reznor 17909 Fan Blade is a direct replacement component engineered specifically for Reznor F and B series unit heaters. This 16 inch, 4 blade aluminum fan assembly is designed with a 23 degree pitch and a 1 2 inch bore for precise fitment on Model F165 and Model F200 gas fired equipment. To maintain optimal airflow and static pressure, the blades are precision balanced to minimize vibration and prevent premature motor bearing fatigue. When