2" White Silicone Bevel Seat GasketOD: 2.41" ID: 1.89"Temperature Range: -65F to +390FExcellent: Mineral Oils, Ozone, Dry Heat, Mild CausticsPoor: Petroleum Oils, Ketones, Concentradted Acids, Tear Resistance

2.5" White Silicone Bevel Seat GasketOD: 2.95" ID: 2.39"Temperature Range: -65F to +390FExcellent: Mineral Oils, Ozone, Dry Heat, Mild CausticsPoor: Petroleum Oils, Ketones, Concentradted Acids, Tear Resistance

3" White Silicone Bevel Seat GasketOD: 3.48" ID: 2.88"Temperature Range: -65F to +390FExcellent: Mineral Oils, Ozone, Dry Heat, Mild CausticsPoor: Petroleum Oils, Ketones, Concentradted Acids, Tear Resistance

4" White Silicone Bevel Seat GasketOD: 4.55" ID: 3.86"Temperature Range: -65F to +390FExcellent: Mineral Oils, Ozone, Dry Heat, Mild CausticsPoor: Petroleum Oils, Ketones, Concentradted Acids, Tear Resistance

1.5" Black EPDM Q-Line GasketOD: 2.09" ID: 1.37"Temperature Range: -60F to +300FExcellent: Steam, CausticPoor: Petroleum Oil, Milk Fat

2" Black EPDM Q-Line GasketOD: 2.74" ID: 1.88"Temperature Range: -60F to +300FExcellent: Steam, CausticPoor: Petroleum Oil, Milk Fat

2.5" Black EPDM Q-Line GasketOD: 3.4" ID: 2.37"Temperature Range: -60F to +300FExcellent: Steam, CausticPoor: Petroleum Oil, Milk Fat

3" Black EPDM Q-Line GasketOD: 4.06" ID: 2.9"Temperature Range: -60F to +300FExcellent: Steam, CausticPoor: Petroleum Oil, Milk Fat

4" Black EPDM Q-Line GasketOD: 5.03" ID: 3.87"Temperature Range: -60F to +300FExcellent: Steam, CausticPoor: Petroleum Oil, Milk Fat

1.5" White Teflon (PTFE) Q-Line GasketOD: 2.09" ID: 1.37"Temperature Range: -100F to +500F

2" White Teflon (PTFE) Q-Line GasketOD: 2.74" ID: 1.88"Temperature Range: -100F to +500F

2.5" White Teflon (PTFE) Q-Line GasketOD: 3.4" ID: 2.37"Temperature Range: -100F to +500F