Williams 2907 Blower Assembly 319825-402 What is the color code

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Williams 2907 Blower Assembly 319825-402 What is the color codeThe Williams 2907 Blower Assembly is a high performance, 125 CFM deluxe accessory engineered specifically for Monterey Plus Top Vent Gas Furnaces. This unit is designed to maximize thermal efficiency by forcing warm air circulation, effectively eliminating cold spots and reducing temperature stratification in large rooms. Built with a centrifugal squirrel cage fan, the motor provides powerful yet quiet airflow compared to standard axial blades. It is