Designed to improve the hygiene of calf feeding troughs, the screw-on flap makes it possible to clean the inside of the flap much more effectively. Parts in contact with milk are easily accessible for cleaning, and there's no germ barrier inside the flap!reduces germ formation in the valvefacilitates cleaning and cleanliness of calf buckets and valvesclean, complete drying of valve and bucket using the drying toolsafe mounting on calf bucket