Model and Serial Number: To find the model and serial number of any of the upper units, you will need to remove the upper shroud. There should be on a identification tag near the compressor.
New Style Shrouds have horizontal vents and no decals or embossing. Made of co-polymer polypropylene material which give better UV protection and is paintable. The strong 2-piece inter-lock construction is impact resistant and has a smaller footprint on the roof.
Tuff/Maxx Replacement Shrouds are made from extra thick, extra tough, UV protected plastic and carries a Lifetime replacement guarantee to the original owner (proof of purchase required). They feature a rear fin guard and sleek, aerodynamic styling. Comes in White or Black.