I was looking for parts for the fridge/cooler build I am starting and I saw on some site some really nice stainless steel or chrome looking air intake valves where you can open and close them for more or less air and they appeared to seal up nice if you were going to leave the smoker outside. I thought they were on the sausagemaker.com page but I can't find them today. I am google searching all over but am not finding much. Anyone have any links or know what they are truly called? Thanks for all of the help guys.