Brower Top Hatch Model THI10. Manual Turn. Asking $25 plus shipping costs. Give me you zip code and I can get a better idea on shipping. It fits into 18 X 18 box. It has the fan unit by the light bulb. I have it plugged in right now and everything is working. Paypal is the preferred method of payment. I have 2 identical units for sale so if you see another it is not a duplicate post.