Coleman Mach Ceiling Air Conditioner, White

Good ceiling unit. Definitely worth the extra control with the omnidirectional louvers. I purchased this for an older (original) Coleman Mach 3 Plus unit on my 93 Winnebago Itasca (Chevy P30 chassis). If your A/c is 20 years or newer, this is a simple install. Anchor bolts are at the corners of the 14x14 ceiling bezel frame which should match most newer Coleman-Mach air conditioners. But on older models you'll need to do some drilling into the subframe of the A/c. Install the bezel then put a little paint on the end of the anchor bolts and push them through to mark the most upright position you can find. This is 1/4-20 long bolts, so I'd recommend picking some extra 1/4-20 nuts, with lock washers and a rubber gaskets to ensure there is no water from the drip pan. You can also put some marine grade epoxy on top to ensure there is no water leaking in through the bolt hole as a precaution. Other than that it's a great clean unit with lots of air control. Just about a half inch shorter on all sides compared to the older ceiling assembly. Still could use some internal damping to lower the decibels, but overall not the worst.