Used 2017 Keystone RV Cougar 21RBS Travel Trailer

Hit the road in comfort and confidence with the Used 2017 Keystone RV Cougar 21RBS—a lightweight, feature-packed travel trailer designed for couples or small families who want quality, convenience, and value in one smart package.

Measuring just under 26 feet and weighing around 5,200 lbs, the Cougar 21RBS is easy to tow while still offering a spacious and functional layout. Inside, the large slide-out opens up the living area, giving you room to relax, dine, and unwind after a day of adventure. The U-shaped dinette is perfect for meals, game nights, or converting into extra sleeping space when needed.

The front private bedroom features a comfortable king bed, offering a cozy retreat with added privacy. In the rear, you’ll find one of this model’s standout features—a full bathroom with a spacious layout, large shower, and plenty of storage, making it feel more like home than a typical travel trailer.

The kitchen is built for real-world use, complete with a three-burner cooktop, oven, microwave, refrigerator, and a deep oversized sink. Whether you’re cooking a quick breakfast or a full dinner, you’ll have everything you need right at your fingertips. Thoughtful touches like hardwood cabinetry, full-extension drawers, and ample storage make life on the road simple and organized. 

Built with Keystone’s durable construction, including aluminum framing, fiberglass exterior, and a fully walkable roof, the Cougar 21RBS is designed for long-lasting performance. Features like ducted A/C, efficient heating, and generous tank capacities allow you to travel comfortably across multiple seasons and stay off-grid longer. 

Why buy the 2017 Cougar 21RBS?
This model delivers the perfect balance of towability, comfort, and smart design. It’s ideal for RVers who want a spacious rear bath layout, private sleeping area, and high-end touches—without stepping into a larger, more expensive trailer. Buying used also means you get proven reliability and great features at a significantly lower cost.

Why buy from Campers Inn RV?
Campers Inn RV is known as “The RVer’s Trusted Resource” for a reason. With decades of experience, they offer competitive pricing, a wide selection of quality pre-owned RVs, and a knowledgeable team ready to guide you every step of the way. Their thorough inspection process helps ensure you’re getting a dependable unit, while flexible financing options make ownership more accessible.

Beyond the sale, Campers Inn RV provides ongoing service, parts, and expert support so you can travel with confidence. Their commitment to customer satisfaction means you’re not just buying an RV—you’re gaining a trusted partner for your journey.

If you’re looking for a well-built, easy-to-tow travel trailer with residential comfort and excellent value, the Used 2017 Keystone Cougar 21RBS is a smart choice ready for your next adventure.