Sizes on these valves are 1/8″, 1/4″, 3/8″ and 1/2″
If you have a hand, foot or cam they can be interchangeable actuators and they have different combos. There are nine different kinds. Both ends of actuator turn at 90 degrees. The placement of the actuator comes from wherever the primary, so yours could be left or right. To move the spool around, usually a second actuator is used. When you order, make sure you tell the size and the unit you want. Specific ports you need. Threads need to be taken into consideration also. If you need air, oil or some other type of fluid mention that too. If you want a standard primary unit or special features, list that to. And tell spool type.
If you need further help with these types of valves, call us at 662-871-8403
tupelohydraulics@gmail.com