A mixing and dispensing device comprising: an outer casing including a body portion, a handle portion, and a nozzle portion, wherein the handle portion is connected to a top portion of the body portion and the nozzle portion includes a nozzle; a mixing manifold disposed in the top portion of the body portion, the mixing manifold including a mixing chamber in fluid communication with the nozzle; a plurality of canisters (140, 142, 144) disposed within the body portion, each of the plurality of canisters (140, 142, 144) including a valve (176, 178, 180) connected to the mixing manifold, the valve (176, 178, 180) being movable between a valve passive position, in which the valve (176, 178, 180) prevents fluid communication between an interior of the canister (140, 142, 144) and the mixing chamber, and a valve dispensing position, in which the valve (176, 178, 180) provides fluid communication between the interior of the canister (140, 142, 144) and the mixing chamber; a trigger including a trigger input and a trigger output, the trigger at least partially disposed within the handle portion, and wherein the trigger is configured to move between a trigger passive position and a trigger dispensing position, wherein movement of the trigger to the trigger dispensing position causes the valve (176, 178, 180) of each canister (140, 142, 144) to move from the valve passive position to the valve dispensing position, wherein the trigger includes a safety bore; and a pull safety including a central cover and a tail tip, the pull safety removably disposed on the outer casing such that the central cover occludes the nozzle and the tail tip prevents movement of the trigger from the trigger passive position to the trigger dispensing position, wherein the tail tip is removably disposed in the safety bore, and a width of a distal end of the tail tip is greater than a width of an entrance to the safety bore. an outer casing including a body portion, a handle portion, and a nozzle portion, wherein the handle portion is connected to a top portion of the body portion and the nozzle portion includes a nozzle; a mixing manifold disposed in the top portion of the body portion, the mixing manifold including a mixing chamber in fluid communication with the nozzle; a plurality of canisters (140, 142, 144) disposed within the body portion, each of the plurality of canisters (140, 142, 144) including a valve (176, 178, 180) connected to the mixing manifold, the valve (176, 178, 180) being movable between a valve passive position, in which the valve (176, 178, 180) prevents fluid communication between an interior of the canister (140, 142, 144) and the mixing chamber, and a valve dispensing position, in which the valve (176, 178, 180) provides fluid communication between the interior of the canister (140, 142, 144) and the mixing chamber; a trigger including a trigger input and a trigger output, the trigger at least partially disposed within the handle portion, and wherein the trigger is configured to move between a trigger passive position and a trigger dispensing position, wherein movement of the trigger to the trigger dispensing position causes the valve (176, 178, 180) of each canister (140, 142, 144) to move from the valve passive position to the valve dispensing position, wherein the trigger includes a safety bore; and a pull safety including a central cover and a tail tip, the pull safety removably disposed on the outer casing such that the central cover occludes the nozzle and the tail tip prevents movement of the trigger from the trigger passive position to the trigger dispensing position, wherein the tail tip is removably disposed in the safety bore, and a width of a distal end of the tail tip is greater than a width of an entrance to the safety bore.