1. For the pressure washer wand: The rotating turbo nozzle has a 4.0 orifice, 4.0 GPM with a 1/4 inch quick connector for pressure washers up to 4000 PSI, compatible with most pressure washer lances. The rotating coupler has a 180 degree swivel range and can be adjusted to 45 degrees, 90 degrees, or 120 degrees as needed. Note: The water temperature should preferably not exceed 60 degrees Celsius. 2. quality materials: The quick connect turbo nozzle features a ceramic core, rubber exterior, and brass construction, making it rust proof and anti aging. The spray nozzle tips are made of stainless steel for long lasting use. The pivot coupler is constructed from brass and stainless steel. 3. 7 spray patterns: Includes 7 spray nozzle tips with different spray patterns—red for 0 degrees (jet), yellow for 15 degrees, green for 25 degrees, white for 40 degrees, black for 65 degrees, pink for soap mode, and blue for rinse mode. 4. Wide applications: The 4.0 GPM quick connect turbo nozzle is suitable for concrete, blocks, bricks, pavers, and most exterior surfaces, making it ideal for washing cars, auto edges, houses, gutters, flowers, and more. It's a practical accessory for cold water pressure washers. The rotating coupler has a 1/4 inch quick connect fitting, compatible with most brands of pressure washer lances and nozzles, supporting up to 4500 PSI.