This Pressure Washer O-Rings Seal Kits is designed for 1/4" and 3/8" Quick Couplers (includes 2 orange 1/4" seals and 2 gray 3/8" seals). This kit includes everything you need to replace the old or damaged O-Rings, ensuring a tight and leak-free connection. The kit is suitable for use with a variety of pressure washers and outdoor power equipment. Perfect for those looking to maintain the performance of their pressure washer without compromising on style.