The one I received is different than the picture on the seller’s page. Not complaining though. I think the one I received is better.I installed this on a hydraulic lift to slow the speed of the cylinder. The control knob provides plenty of resolution so you are able to adjust the flow to exactly what you need.The reason I removed this is that I didn’t look carefully at the description. This one controls flow in only one direction, and a valve that controls the flow in both directions is what I needed.