Tjernlund Register Booster Series
Tjernlund’s Duct Booster® Register Booster Fans increase air flow to rooms that are too hot or too cold. These all metal high velocity register fans increase weak air flow from registers quickly and easily.They include Whisper quiet operation with a Low sone cross flow blower (1.4 sones) making it 50% quieter than buzzing “muffin” fan style. The RB series are easy to install and fits flush with carpet into existing register boot and includes 6’ power cord.
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