Systems for delivering coating compositions are disclosed. The system may include a support base for supporting a container of a coating composition and a pressure canister movable in relation to the support base from an open position to a closed position in which the pressure canister surrounds the coating composition container and forms a seal with the support base. The system may include a pressure canister that is movable from a delivery position in which the canister is pressurized to a cleaning position in which the canister may be cleaned by a cleaning fixture. The pressure canisters are useful in automated systems for delivering various types of coating formulations.