2017 Keystone RV Alpine 3731FB, This 2017 Keystone Alpine 3731FB is a great choice for your new RV. This 0 5th Wheel has 3 slide outs and can sleep 4 people. It has a 66 gallon fresh water tank, a 83 gallon gray water tank, and a 83 gallon black water tank. It is 0 tall and 0 wide. The hitch weight is 2485 lbs., ship weight is 12868 lbs., and the GVWR is 15500 lbs. This 2017 Keystone Alpine 3731FB is a great choice for your new RV. This 0 5th Wheel has 3 slide outs and can sleep 4 people. It has a 66 gallon fresh water tank, a 83 gallon gray water tank, and a 83 gallon black water tank. It is 0 tall and 0 wide. The hitch weight is 2485 lbs., ship weight is 12868 lbs., and the GVWR is 15500 lbs.
