Nothing is worse than drinking a stale glass of beer, which is why Kleen Plugs are an essential tool for your bar. Not only do Kleen Plugs keep pesky fruit flies out of beer taps at night, they also help remove yeast and sediments that can have a negative effect on a beer's taste. The Plug's innovative and unique design fits a wide variety of beer tap openings, as well as some rail bottles. After all, clean taps make for delicious tasting beer, and delicious tasting beer makes for a positive experience for you and your customers. Replace when Kleen Plug no longer fits snugly into beer tap opening. Affordable and reusable. - 5 plugs per pack - Sold per each