This Two-Gun Tee Coupler converts a one-gun pressure washer into a two-gun system. This is a good way to power wash on a big job if you don't have 2 machines. Quick connect this Branch Tee onto the pressure washer outlet, then connect two pressure washer hoses to either end of the 2-gun splitter. Allows for 2 pressure washer users simultaneously. Attention: Ideal for pressure washers higher than 4.0 GPM. When running two guns simultaneously, this coupler splits the GPM between the two guns and it is necessary to change the pressure washer nozzle to achieve desired results. Y shaped, made of Brass. Fitting: 3/8 quick coupler plug + 3/8 quick coupler socket. Working pressure is up to 5000 PSI. Give you quick reply within 10 hours. are committed to developing more efficient and safer pressure washer accessory, helping people reducing the tiredness of spraying and cleaning in the garden. We are known for amazing pressure washer accessory, such as nozzle, wand, gun, coupler, foam cannon. FeatherFitting: 3/8 quick coupler plug + 3/8 quick coupler socketY shaped.Made of brassWorking pressure is up to 5000 PSI.