Plunger cans help you quickly, easily moisten cleaning cloths or swabs. Pushing down fills upper pan for moistening. Surplus liquid drains safely back into reservoir. The perforated pan screen serves as a flame arrester. Top rims have moulded edge protectors for smooth, trouble-free moistening. All models have a coated steel construction with a brass pump assembly. Model 10008 has a 2.3/4" diameter dasher. All other models have a 5" diameter dasher.