Review on CPS Products TLJ4 R134a Oil and Dye Injector: A Must-Have for Effortless Refrigerant Maintenance and Leak Detection! by Jessie Zdunich

I bought this CPS oil nozzle a few weeks ago. It was well packaged with clear instructions and diagrams showing the user how to use it when the system is under vacuum and when the system is already charged. I used it accordingly and it worked great. The quality of the oil tank is very impressive. There is a valve at one end to shut off the system when you fill it with oil. The hose is a 1/2 inch female connector that you connect to a gauge manifold. The quality is very high and I went with this one to make sure it would last and do what I want which is add oil. regular American products are the best and we should be proud of them!