Since 1995, Ventmate has been the choice of RV dealers for popular ventilation accessories. Our products are designed with the RVer in mind, and are sold throughout North America at independent RV dealers and RV parts and accessories stores.• Compatibility: 14 Inch X 16 Inch Coleman Air Conditioner Vent Openings• Includes Gasket: Yes• Includes Leveling Pad: No Packed In A Plain, Plastic Bag With A Barcode/Part Number Label On It Easy To Install | Ventmate Air Conditioner Installation Kit