This 1/2″ x 1/2″ Connector Coupling from Miller Industries is used on theHydraulics Assembly of several Miller Car Carriers. These Carriers includeCentury, Champion, Holmes, and Vulcan. See the features below for a list ofassemblies and see the brochure tab for breakdowns. 1/2″ MJ x 1/2″ MB Fits: Century 10 Series Steel & Aluminum Carriers Challenger Car Carriers 2002-Current Century 15 Series Steel & Aluminum Carriers 2002-Current Century 20 Series Steel & Aluminum Carriers 2005-Current 30 Series Steel Carrier Champion Steel & Aluminum Carriers 2001-Current Holmes 10 Series Steel & Aluminum Carriers 2003-Current Vulcan 10 Series Steel & Aluminum Carriers 2001-Current Vulcan 10 Series Extreme Angle Steel Carriers