Its capacity is 100 US gallons which is 378 L or thereabouts. It does not have a connection at the base of the tank but you could drill one in if you required. It does have four welded on half inch (female) connections on top and also one large one which I think is 2 1/2 or 3 inch BSP female (See photos). Suitable for the storage of very strong acids and very strong alkalis or just water.This item is in the category "Business, Office & Industrial\Agriculture/Farming\Storage Tanks". The seller is "joba_732151" and is located in this country: GB. This item can be shipped to United Kingdom.