Shock Pass Through Device badge freeshipping Viper VaporCheck 10 mil is a Shopify Collective Viper VaporCheck 10 mil is a high performance under slab vapor barrier designed to retard moisture migration through concrete slabs on grade Suited for backpan or mechanical fastening applications Additional posts are commonly used in areas where not much clearance exists from where workers are walking on the beams to an obstruction below The unique design keeps the systems horizontal cable in place while still allowing workers enough room to pass the snap hook of their lanyard through the intermediate adapter without ever needing to disconnect from the horizontal lifeline cable system