by eamarquardt » Thu Oct 17, 2013 6:10 pm
Not sure if you'd like these but they could be installed at any time using a hole saw to cut the hole in the wall. They wouldn't be too hard to trim out on the inside with a screen to keep unwanted critters out and the o-ring ought to keep em weather tight when sealed up.
http://www.ebay.com/itm/8-inch-Screw-Ou ... 35ad6b18c7They're available in 4", 6", and 8" sizes.
Hope this helps.
Cheers,
Gus
The opinions in this post are my own. My comments are directed to those that might like an alternative approach to those already espoused.There is the right way,the wrong way,the USMC way, your way, my way, and the highway.
"I'm impatient with stupidity. My people have learned to live without it." Klaatu-"The Day the Earth Stood Still"
"You can't handle the truth!"-Jack Nicholson "A Few Good Men"
"Some people spend an entire lifetime wondering if they made a difference in the world. The Marines don't have that problem"-Ronald Reagan