The Reliance Rhino-Pak is 5.5 gallon (20 Liter) rugged water container. It is made of extremely thick plastic, and has a premium spigot and vent cap. It features a side panel design that locks it in place when paired with another Rhino-Pak; locks together upright on it's side. Strap it down on your ATV rack and go exploring; tie it down on your raft and take on the white water; or simply slide it in your car and go on an adventure. Measurements: L-14.75"xW-6.25"xH-19" and weighs 2.87 lbs.