Centering Ring O-Ring Replacement, Red Silicone, ISO-63 Vacuum Fitting, ISO MF LF Flange Size NW-63 These Red Silicone Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-63. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. Silicone is a popular O Ring which is commonly red in color. The Red O Ring is made of elastomeric materials made from silicone, oxygen, hydrogen and carbon. Description: Excellent material for static service at extreme (hot or cold) temperatures. Outstanding flex and fatigue life. Very good for ozone and UV radiation service as well as for resistance to fungal and biological attack. Limitations: Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils. Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance. Temperature Range: –51° to 232°C (–60° to 450°F) Typical Uses: LPCVD/Oxidation, Dry Etch, Resist Stripping. ISO-63 Red Silicone O-Ring Replacement ISO-NW Flange Size: NW-63 Common Dimensions: ID = 2.85 (72mm)

Centering Ring O-Ring Replacement, Red Silicone, ISO-80 Vacuum Fitting, ISO MF LF Flange Size NW-80 These Red Silicone Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-80. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. Silicone is a popular O Ring which is commonly red in color. The Red O Ring is made of elastomeric materials made from silicone, oxygen, hydrogen and carbon. Description: Excellent material for static service at extreme (hot or cold) temperatures. Outstanding flex and fatigue life. Very good for ozone and UV radiation service as well as for resistance to fungal and biological attack. Limitations: Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils. Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance. Temperature Range: –51° to 232°C (–60° to 450°F) Typical Uses: LPCVD/Oxidation, Dry Etch, Resist Stripping. ISO-80 Red Silicone O-Ring Replacement ISO-NW Flange Size: NW-80 Common Dimensions: ID = 3.35 (85mm)

Centering Ring O-Ring Replacement, Red Silicone, ISO-100 Vacuum Fitting, ISO MF LF Flange Size NW-100 These Red Silicone Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-100. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. Silicone is a popular O Ring which is commonly red in color. The Red O Ring is made of elastomeric materials made from silicone, oxygen, hydrogen and carbon. Description: Excellent material for static service at extreme (hot or cold) temperatures. Outstanding flex and fatigue life. Very good for ozone and UV radiation service as well as for resistance to fungal and biological attack. Limitations: Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils. Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance. Temperature Range: 51 to 232 C (60 to 450 F) Typical Uses: LPCVD/Oxidation, Dry Etch, Resist Stripping. ISO-100 Red Silicone O-Ring Replacement ISO-NW Flange Size: NW-100 Common Dimensions: ID = 4.1 (104mm)

Centering Ring O-Ring Replacement, Red Silicone, ISO-160 Vacuum Fitting, ISO MF LF Flange Size NW-160 These Red Silicone Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-160. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. Silicone is a popular O Ring which is commonly red in color. The Red O Ring is made of elastomeric materials made from silicone, oxygen, hydrogen and carbon. Description: Excellent material for static service at extreme (hot or cold) temperatures. Outstanding flex and fatigue life. Very good for ozone and UV radiation service as well as for resistance to fungal and biological attack. Limitations: Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils. Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance. Temperature Range: �51� to 232�C (�60� to 450�F) Typical Uses: LPCVD/Oxidation, Dry Etch, Resist Stripping. ISO-160 Red Silicone O-Ring Replacement ISO-NW Flange Size: NW-160 Common Dimensions: ID = 6.22 (158mm)

Centering Ring O-Ring Replacement, Red Silicone, ISO-200 Vacuum Fitting, ISO MF LF Flange Size NW-200 These Red Silicone Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-200. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. Silicone is a popular O Ring which is commonly red in color. The Red O Ring is made of elastomeric materials made from silicone, oxygen, hydrogen and carbon. Description: Excellent material for static service at extreme (hot or cold) temperatures. Outstanding flex and fatigue life. Very good for ozone and UV radiation service as well as for resistance to fungal and biological attack. Limitations: Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils. Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance. Temperature Range: �51� to 232�C (�60� to 450�F) Typical Uses: LPCVD/Oxidation, Dry Etch, Resist Stripping. ISO-200 Red Silicone O-Ring Replacement ISO-NW Flange Size: NW-200 Common Dimensions: ID = 8.19 (208mm)

Centering Ring O-Ring Replacement, Red Silicone, ISO-250 Vacuum Fitting, ISO MF LF Flange Size NW-250 These Red Silicone Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-250. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. Silicone is a popular O Ring which is commonly red in color. The Red O Ring is made of elastomeric materials made from silicone, oxygen, hydrogen and carbon. Description: Excellent material for static service at extreme (hot or cold) temperatures. Outstanding flex and fatigue life. Very good for ozone and UV radiation service as well as for resistance to fungal and biological attack. Limitations: Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils. Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance. Temperature Range: �51� to 232�C (�60� to 450�F) Typical Uses: LPCVD/Oxidation, Dry Etch, Resist Stripping. ISO-250 Red Silicone O-Ring Replacement ISO-NW Flange Size: NW-250 Common Dimensions: ID = 9.96 (253mm)

Centering Ring O-Ring Replacement, Red Silicone, ISO-320 Vacuum Fitting, ISO MF LF Flange Size NW-320 These Red Silicone Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-320. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. Silicone is a popular O Ring which is commonly red in color. The Red O Ring is made of elastomeric materials made from silicone, oxygen, hydrogen and carbon. Description: Excellent material for static service at extreme (hot or cold) temperatures. Outstanding flex and fatigue life. Very good for ozone and UV radiation service as well as for resistance to fungal and biological attack. Limitations: Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils. Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance. Temperature Range: �51� to 232�C (�60� to 450�F) Typical Uses: LPCVD/Oxidation, Dry Etch, Resist Stripping. ISO-320 Red Silicone O-Ring Replacement ISO-NW Flange Size: NW-320 Common Dimensions: ID = 12.95 (329mm)

Centering Ring O-Ring Replacement, Red Silicone, ISO-400 Vacuum Fitting, ISO MF LF Flange Size NW-400 These Red Silicone Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-400. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. Silicone is a popular O Ring which is commonly red in color. The Red O Ring is made of elastomeric materials made from silicone, oxygen, hydrogen and carbon. Description: Excellent material for static service at extreme (hot or cold) temperatures. Outstanding flex and fatigue life. Very good for ozone and UV radiation service as well as for resistance to fungal and biological attack. Limitations: Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils. Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance. Temperature Range: �51� to 232�C (�60� to 450�F) Typical Uses: LPCVD/Oxidation, Dry Etch, Resist Stripping. ISO-400 Red Silicone O-Ring Replacement ISO-NW Flange Size: NW-400 Common Dimensions: ID = 15.94 (405mm)

Centering Ring O-Ring Replacement, Red Silicone, ISO-500 Vacuum Fitting, ISO MF LF Flange Size NW-500 These Red Silicone Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-500. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. Silicone is a popular O Ring which is commonly red in color. The Red O Ring is made of elastomeric materials made from silicone, oxygen, hydrogen and carbon. Description: Excellent material for static service at extreme (hot or cold) temperatures. Outstanding flex and fatigue life. Very good for ozone and UV radiation service as well as for resistance to fungal and biological attack. Limitations: Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils. Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance. Temperature Range: �51� to 232�C (�60� to 450�F) Typical Uses: LPCVD/Oxidation, Dry Etch, Resist Stripping. ISO-500 Red Silicone O-Ring Replacement ISO-NW Flange Size: NW-500 Common Dimensions: ID = 19.92 (506mm)

Centering Ring O-Ring Replacement, Red Silicone, ISO-630 Vacuum Fitting, ISO MF LF Flange Size NW-630 These Red Silicone Replacement O-Rings follow International Standards Organization (ISO) standards and have a flange size of NW-630. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring (please see top right figure - click to enlarge). The ISO standard sizes for LF NW ISO large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. Silicone is a popular O Ring which is commonly red in color. The Red O Ring is made of elastomeric materials made from silicone, oxygen, hydrogen and carbon. Description: Excellent material for static service at extreme (hot or cold) temperatures. Outstanding flex and fatigue life. Very good for ozone and UV radiation service as well as for resistance to fungal and biological attack. Limitations: Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils. Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance. Temperature Range: �51� to 232�C (�60� to 450�F) Typical Uses: LPCVD/Oxidation, Dry Etch, Resist Stripping. ISO-630 Red Silicone O-Ring Replacement ISO-NW Flange Size: NW-630 Common Dimensions: ID = 25.90 (658mm)