That filter looks a bit small in that big box. I said it before, and I will say it again. I want a box for my BHAF that uses cold air. Paper filters for me.
Originally posted by Ram4Sam
length: 7. 5"
small end circumference:15. 0"
big end circumference:20. 0"
For reference, a stock box filter is 10" x 11" which should mean 110 inches of surface area.
Sam