Greyhawk 27U 29' 11" 7 Virtual Tour Floorplan Specs Virtual Tour Floorplan Specs Sleeping - 7 Slides - 2 Overall Length - 29' 11" Chassis - Ford E450 Engine - Triton 7.3L EFI V8 Premium Fresh Water - 42 Gallons Gray Water - 41 Gallons Black Water - 31 Gallons