The American Hydraulic Standards Identification Kit is a tool that can help quickly identify connections using the shape, size, and thread method.

Step 1, Identify the Shape of the connection using the bag as an easy reference.

Step 2, Find the size by either inserting the male connection into the sizing holes or using the sides of the cards on female connections.

Step 3, Using the table on the card to know the thread of the connection, and using the thread gauge to confirm that it is correct.

When the shape, size, and thread match, you should know your connection size and type.