The Conklin Sherman Company
Adjustable plug has been tested to: 100-125 PSI
Very Important - Plugs must be properly installed in a clean dry tube
Plugs must be the right size
Shelf life of plug is 2 years if stored in a cool, dry area
Rubber is nitrile (Buna N)
Rubber is oil resistant and can take temperatures up to 260 degrees Fahrenheit
Metal insert is all brass
Each Conklin Sherman adjustable plus is 100% inspected
Adjustable plugs can be reused many times
Other rubber compounds are available. Please ask us for more information.