As I recall when you look under fans and under 16 inch fans and puller fans for sure not pusher you want a puller fan but a lot of them are reversible. It was like the first one on the summit catalog or on Summit website under fans and I think it was like $140. You don't want to buy a cheap one because you get what you pay for. Definitely buy for $35 I think it is a adjustable thermostat and don't buy the cheap replacement one because that doesn't give you the bracket. And put it on a relay...
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