Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Call to confirm the model number before you purchase

I read the reviews about the vent problems with the 7553 so I ordered this cover from Grady's Hardware because it said it was the 9985. When I recieved it, it was the 7553. I called and they were very helpful about exchanging it for the 9985. I was a little disappointed about having to take the time and do this instead of having the right one the first time. The material looks great on this cover. It is heavier duty than I was expecting. The vents are just in the wrong place. Very poor design. I look forward to getting the 9985 with the vent in the back. It is definately wise to save some time and call the seller to make sure they will send you the right model cover.