I have a 29 ft 290b and use an ADCO cover. Remember that Hi Lo measures the 29 ft from the front hitch to the tail bumper. Your living area will most likely be around 26 ft (I suggest you measure to confirm). My trailer has only about 26 ft living space and I cover mine with a 26 ft cover and it fits well. My Adco part # is 22853, I know because I have it sitting here as I am about to go on a trip. Hope this helps