50 Gallon (200 liter) ATL Petro-Flex "Pillow-Style" Marine Range Extension Fuel Bladder Rugged Mil-Spec Rubberized Fuel Bladder with 2" Fill/Stand Pipe with pressure-relief valve and anti-backflow flap, and 1/2" Ball Valve Outlet with safety lock. Fill Dimensions (LxWxH): 55" x 35" x 12" Gasoline or Diesel Compatible. Just Unfold on Deck and Fill With Any Standard Refueling Nozzle! Fully Collapsible - Roll Up and Stow When Not In Use! FREE YOUR VALUABLE DECK SPACE! This brand new 50 gallon ATL Petro-Flex includes: (1) 105410 ATL 50 Gallon Petro-Flex Range-Extension Fuel Bladder with 2" Diameter Fill/Stand Pipe, 1/2" FNPT Brass Ball Valve Outlet with Hose Barb Fitting and Safety Lock and Protective Underliner Mat.