Camco is a well known and trusted brand in the RVing world. The Camco Revolution and Camco Rhinoflex are it’s two best selling RV sewer hoses. Both of these hoses are great and you’ll be happy with either purchase, there are some differences though. The Rhinoflex offers more length and flexibility, and has the ability to spin 360 degrees. This hose offers tighter connections and easier storage as they are more flexible. The Revolution on the other hand is more durable and you can rest assured that it will last you a very long time. They are reinforced with a steel wire and are pretty indestructible, they can survive being run over.  Both are great options, it’s up to you which features you value more.