I am amazed at how well this thing holds temps!!! I had it at 250 for 161/2 hours ten I decided to shit it down!! Still had coals! 3 3/4 intakes one with a ball valve the other two have a 90 elbow facing Down to avoid the wind both them have screw in plugs ... 3 racks .. 2 for cooking 1 for a water pan (which I only use when cooking on th lower grate to block direct heat!! Gasket seal on the lid and I have to install 4 lid latches yet ... I don't think I need them really but hey the tighter it is the more consistent it will cook!!!