We have a old stock Parker 3-way valve that has a small crack on the handle. We used these valves for our Fuelmaker Fueling hoses and nozzles. I think the size is 9/16" female x 9/16" male. I cannot guarantee thread sizes, we use several different valves with many different adapters to connect to the hoses and nozzles. This is a high pressure ball valve and I believe the Parker number is HB4XK-BN? We have several and this particular valve may have been put in the wrong box? Either way it was a 0.00 valve selling for 5.00. We will send it in the box it came out of just can't guarantee it's the correct box.