its in the garage and way too far to bring in from another room. just a lil box in the corner =]It sounds like you are bringing in outside air. If that is the case I would suggest cutting a furnace filter (maybe the same as an A/C filter) as it allows good flow while keeping out most large bugs. I just bring in air from another room so no need to filter.
+1 A price that must be paid.I feel this is a must, use a top of the line furnace filter and Horticultural Insect Screen... something like this... using both I'm guessing a 12 -17 % loss of air flow but as we all know to keep out the bugs that's a small price to pay... http://www.altgarden.com/store/cart.php?m=product_detail&p=866
I love how you blatently reply to a three year old thread.a shop vac filter might work..
This is what i was thinking of. How would that work against spidermites and other small nasties? I dont have a bug problem yet, but i'm scaaared of losing my girlsI would hijack a pair of my girlfriends panty hose and stretch it over the vent tubing and fasten it there with some tape.