On July 8, 2014 Webstone, was issued a U.S. patent for its Pro-Pal® Primary/Secondary Purge T™ and Pro-Pal® Purge & Fill™ valve systems. Documentation has been filed to include worldwide patent rights for these products. Pro-Pal® Step Saving Valves for Professionals are designed to save time, eliminate components and minimize leak paths and are all backed by a lifetime warranty.
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