Pouring from one gallon containers just got easier! Our Dispensing Twist Open/Close Caps are just the right size for one gallon F-Style containers. This allows you to lay the bottle on it's side for easy shelf dispensing. This is a ribbed dispensing cap with a gasket and a secure on/off closure. They will fit any one gallon container with a 38/400 opening. Material: Mixed Cap Size: 38/400