Product Info: - Part: A/C System Seal Set - Classification: Gold - O Ring Maximum Inside Diameter: 0.551 inches / 13.995 millimeters - O Ring Minimum Inside Diameter: 0.266 inches / 15.494 millimeters - O Ring Maximum Outside Diameter: 0.649 inches / 7.0104 millimeters - O Ring Minimum Outside Diameter: 0.336 inches / 8.