Broken valve stems are a common problem with lawn mowers.  When mowing lawns, it is not uncommon to hit something like a tree or curbing with the tires.  In some occasions this could sheer a valve stem causing air loss and turn an easy job into an all day affair.  These are actual photos of this exact occurrence.  The solution is Surevalve ™, this lawn mower has had Surevalves ™ installed for a more worry free operation.  Surevalve ™ is not only a safety device, but also a time and money saver!

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