What is Reddit's opinion of VIVOSUN 4-Inch 203 CFM Inline Duct Fan: Air Circulation Vent Blower with a 5.4 ft. Power Cord for Grow Tents, Hydroponics, Basements, and Kitchens, ETL Certified?
From 3.5 billion Reddit comments

2 reviews of this product found across Reddit:

6 points
·
18th Nov 2018
1 point
·
1st Aug 2020

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