The advantages of two-color O-ring are as below: 1. It consists of a plastic reinforced double component seal ring which holds the O-ring in groove properly, thus ensuring 100% leak proof joints 2. Enough power to the joints to withstand high pressure flow rates 3. Dimensional stability, remains intact while installation. 4. Easier installation. 5. Passes pressure test requirement. 6. Can be made in color combination desired by customer. 7. It is made with the advanced co-moulding technology