Comply with the control of pollution oil storage england regulations 2001 full length base sump with removable galvanised grid mesh floor high and low vents with flame arrestor gauze single bulk head doors except 313555dq2 313556dq2 313557dq2 which have double sliding doors with rod and lever locking handle crane lift points and fork stirrups on all units two shelves fitted either side of door 313555dq2 313556dq2 313557dq2 are fitted with 3 full shelves and 1 half depth shelf f