Coleman-Mach - the brand you turn to for quality ACs, Heat Pumps, Thermostats and accessories for RVs, boats, off-road vehicles and specialty applications. For Coleman-Mach air conditioners and heat pumps, innovation is a process of assessing customer needs and translating those needs into products. It is these innovations that have kept us at the forefront of the industry, and made the Coleman-Mach brand a trusted partner to RV manufacturers, dealers and enthusiasts everywhere. Compatibility: Coleman AC Units Using The Duct Fabric Kit Installation Easy To Install Replacement For Coleman AC Units Using The Duct Fabric Kit Installation Limited 90 Day Supplier Warranty | Coleman RVP Coleman Mach Air Conditioner Duct Collar - 14-1/2" L