Seal Fast 3-Inch Extra Thick Buna-N Replacement Gasket (300BX)

The Seal Fast 300BX is a 3-inch extra-thick Buna-N replacement gasket designed for sealing compatible industrial fittings and fluid-handling connections. Manufactured from nitrile rubber (NBR), this replacement component is intended for maintenance technicians, industrial equipment operators and contractors servicing assemblies that require an extra-thick gasket.

Best Used For

• Industrial Hose and Fitting Maintenance: Replacing worn or damaged gaskets in compatible 3-inch connection assemblies.

• Fluid-Handling Systems: Maintaining gasketed connections in equipment where Buna-N material and extra-thick construction are specified.

• Equipment Repair and Servicing: Replacing sealing components during routine maintenance, repairs and fitting inspections.

Key Performance & Safety Features

• 3-Inch Nominal Size: Designed for compatible fittings requiring a 3-inch replacement gasket.

• Extra-Thick Configuration: Intended for assemblies that specify an extra-thick gasket rather than a standard-thickness component.

• Buna-N Rubber Material: Made from nitrile rubber, a commonly used gasket material with resistance to certain oils, fuels and petroleum-based fluids.

• Replaceable Sealing Component: Supports maintenance of compatible fittings without requiring replacement of the entire assembly.

• Passive Sealing Design: Requires no batteries, electrical power or mechanical drive components.

• Industrial Maintenance Application: Suitable for professional fluid-handling and equipment-servicing work when compatibility is confirmed.

What's Included

• (1) Seal Fast 3-Inch Extra Thick Buna-N Replacement Gasket — 300BX