Yellow Jacket Max-Flow Evacuation Kit 1/2" Hose with 3/8" to 1/4" SAE - 93887Get the best performance out of your vacuum pump. By combining two very popular YELLOW JACKET products, system evacuation time can be significantly reduced. The MaxFlow Evacuation Kit combines a ½ vacuum hose with our most popular core removal tool for more than five times the evacuation speed then when standard hose sizes are used.Key Feature/ Benefits : 1/4 Core/Vacuum/Charge Tool removes cores that cause restriction 1/2 Large diameter hose (3/8 x 1/4 45°) creates full, quicker flow Heavy duty hose wont collapse Vacuum rated to 20 microns Opens up over 90% of internal diameter of access hose Perform A/C and refrigeration system evacuations up to 4x faster than using 1/4 hoses Reduce the time it takes to pull and hold vacuum leaving a tight and dry system Click here to view Yellow Jacket website