Forney 75148 Pressure Washer Accessories, Spray Nozzle Assortment, Quick Connect, 4.0mm, 5-Piece These items consists of 1 each of the most commonly used spray nozzles in a 4.0 or 4.5 orifice size For yellow, white, green and red and a 65 degree x 40 for the black soap nozzle These nozzles are designed for a 1/4-Inch quick coupler for easy change of nozzles The color coded nozzles determine the concentration of the spray pattern with red being the most concentrated or strongest This is a pack of nozzles covers all your cleaning needs