Plunger cans help you quickly and easily moisten cleaning cloths or swabs.  Pushing down plunger fills upper pan for moistening.  Surplus liquid drains safely back into reservoir.  The 5" perforated pan screen (Dasher) serves as a flame arester.  Terne plate (lead/tin coated steel) construction with a power coat paint finish for durability.  Brass pump assembly is simple to dismantle for routine cleaning during solvent change