The Betts 19935TS O-Ring seals the main seat on Betts 4-inch vapor vents and air emergency valves, constructed of Tef-Sil (Teflon-encapsulated silicone) for broad chemical compatibility.
Size: 4 inches
Material: Tef-Sil
Application: Betts 4-inch Vapor Vents and Air Emergency Valves