Tough 20 Litre NATO approved fuel / water container made of HDPE.
20 Litre (4.25 Imp Gals) capacity as supplied to the British MoD and NATO. Meets Quality Assurance Authority standards. Screw top cap & added air vent cap.  
 
Please note this can is suitable for use with water and other liquids including petrol, but the regulations in the UK prohibit this can for use with petrol