Denver Keg Bung offers many advantages over its traditional conuterpart. Flavor of the beer is unaffected. Uniformity of material makes the product consistant. Environmentally controlled storage is unnecessary. Elasticity of bung allows longer life from scored and scratched keg necks. Plastic material has re-use value to aid environmental and cost aspects. Price shows for individual piece price. Your cart will automatically show your order of 20 when ordering.