A sealing ring, comprising in a diametrical cross-section: a body section comprising a center; a first sealing leg that outwardly extends from and is integral with the body section; a second sealing leg that outwardly extends from and is integral with the body section, wherein the first sealing leg and second sealing leg are angularly spaced apart by a first angle θ1; a third sealing leg that outwardly extends from and is integral with the body section; and a fourth sealing leg that outwardly extends from and is integral with body section, wherein the third sealing leg and fourth sealing leg are angularly spaced apart by a second angle θ2; wherein each sealing leg (16, 18, 22, 24) extends to a beveled end (28, 30, 32, 34), respectively, that is configured to form a seal with a surface when sealing ring is under compressive force; and wherein the first sealing leg and the fourth sealing leg are substantially coplanar, and the third sealing leg and the second sealing leg are substantially coplanar, wherein the plane of first and fourth sealing legs and intersects the plane of the second and third sealing legs and; characterized in that the sealing ring further comprises in the diametrical cross-section: a first centering leg that outwardly extends from and is integral with the body section and is located between and angularly spaced apart from the first sealing leg and the third sealing leg; and a second centering leg that outwardly extends from and is integral with the body section and is located between and angularly spaced apart from the second sealing leg and the fourth sealing leg; wherein the first centering leg and the second centering leg are substantially coplanar; and wherein when the sealing ring is positioned within an annular groove, the first centering leg and the second centering leg center the sealing ring and limit the lateral movement of the sealing ring, wherein the sealing ring has a first inner diameter ID1 that is measured at end of second centering leg, and wherein the sealing ring has a second inner diameter ID2 that is greater than the first inner diameter ID1, the second inner diameter ID2 measured at both inner portion of the second sealing leg and at inner portion of the fourth sealing leg. a body section comprising a center; a first sealing leg that outwardly extends from and is integral with the body section; a second sealing leg that outwardly extends from and is integral with the body section, wherein the first sealing leg and second sealing leg are angularly spaced apart by a first angle θ1; a third sealing leg that outwardly extends from and is integral with the body section; and a fourth sealing leg that outwardly extends from and is integral with body section, wherein the third sealing leg and fourth sealing leg are angularly spaced apart by a second angle θ2; wherein each sealing leg (16, 18, 22, 24) extends to a beveled end (28, 30, 32, 34), respectively, that is configured to form a seal with a surface when sealing ring is under compressive force; and wherein the first sealing leg and the fourth sealing leg are substantially coplanar, and the third sealing leg and the second sealing leg are substantially coplanar, wherein the plane of first and fourth sealing legs and intersects the plane of the second and third sealing legs and; characterized in that a first centering leg that outwardly extends from and is integral with the body section and is located between and angularly spaced apart from the first sealing leg and the third sealing leg; and a second centering leg that outwardly extends from and is integral with the body section and is located between and angularly spaced apart from the second sealing leg and the fourth sealing leg; wherein the first centering leg and the second centering leg are substantially coplanar; and wherein when the sealing ring is positioned within an annular groove, the first centering leg and the second centering leg center the sealing ring and limit the lateral movement of the sealing ring, wherein the sealing ring has a first inner diameter ID1 that is measured at end of second centering leg, and wherein the sealing ring has a second inner diameter ID2 that is greater than the first inner diameter ID1, the second inner diameter ID2 measured at both inner portion of the second sealing leg and at inner portion of the fourth sealing leg.