The Surevalve ™ has a subriminal valve core for maximum protection for your extreme off-road adventures.  The outer valve stem is double sealed to prevent air, dirt, and water from penetrating and corroding the valve core.  The valve stem is the weak link in the tire and rim assembly.  When participating in extreme off-road activities you are at a great risk of severing your valve stem.   The last thing that you want when you're in a mud hole is to get a flat tire due to a broken valve stem. 

     Use Surevalves ™ for your trailer tires.  They are extremely durable even in salt water.  The double seal prevents water from penetrating the valve core and causing corrosion and possible leaks from the valve core.  Extreme sports call for extreme protection and parts.  Surevalve ™ is your answer.