This is a new American made pressure relief valve that will work with the vast majority of Cornelius style lids. It also fits any keg fitted with our Pressure Relief Valve assembly. This valve has an advantage over the original Cornelius design in that the O-ring on the bottom is replaceable. This valve should give you years of service! Not sure if this will fit your keg? Call us and we can help you. The number is 325-356-5204.