advice: fan to cool 2 400w HPS

ive got a 4x6 closet that i want to add a second 400w HPS to ive ducted the first and use a small 4"in line boost fan it barely handels the job. im looking for a fan that will pull enough air through two cool tubes, where they can be found would help..rob

hydro farm 465 cfm with 4" intake should take care of it like 100 bucks new on ebay mounted mine in attic and pull through dryer hose/pipe works great

NotMine said:

hydro farm 465 cfm with 4" intake should take care of it like 100 bucks new on ebay mounted mine in attic and pull through dryer hose/pipe works great

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i 'll give them a shot i've had trouble with e bay in the past...rob