GPM MAXIMIZER HOSE KIT 3/8"

This is a GPM Maximizer and also commonly referred to as a Pressure Washing Siamese Kit. This allows you to hook up two pressure washers of the same PSI to achieve more water flow. So if you have two 4GPM Pressure Washers, you can achieve 8GPM by hooking them both together. In the video below you will see I used it to combine our 9 and 8 GPM pressure washers together. Both machines need to belt drive, have the same pressure trap unloader, and both unloaders should be set at the same PSI. Be sure the arrow on check valve is pointing the correct direction. The way of the water flow.