A vehicle storage system with vapor control. The storage system includes: a vehicle tank including a vapor outlet, a filter unit including a filter inlet and outlet, a housing including a first port communicating with the vapor outlet, a second port communicating with the filter inlet, a third port communicating with the filter outlet, and a fourth port. A closure body is moveably arranged in the housing, the closure body configured to: close the third and fourth ports in a first position of the closure body, create in the housing a barrier between a first volume and a second volume in a second position of the closure body, the first volume forming a passage between the first and second ports, and the second volume forming a passage between the third and fourth ports, and close the first and second ports in a third position of the closure body.