I have been using this tent for about 8 months now and it has held up very well. I wish it had 2-3 more ports strategically placed for electrical components as the single one it does have is up high sometimes forcing you to innovate ways to adjust and place fans, humidifier and heater. The window is nice too. **CAUTION** I run a 4" fan and carbon filter @ 206cfm and the suction is perfect. I think 6" with higher cfm than 206 would bend the aluminum poles used for frame so be very careful. I can grow 4 plants in 5gal pots, 6 in 3gal or 9 in 1gal in this tent. Zipper is strong with no issues. I love the tent and I would definitely buy Topolite grow tents again!
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