2007 Doubletree RV Select 36TK3, The 2007 Doubletree Select 36TK3 Great 3-slide fifth wheel built for longer-term living and comfort! There's plenty of overhead storage, a huge master suite with king bed, and spacious lavvy. The galley has a center sink with loads of counterspace. For relaxing, the rear lounge has a sofa, twin easy chairs, and an entertainment nook. This Select is an amazingly luxurious, very affordable fifth wheel option!