ProductsWelding SuppliesWelding AccessoriesWelding Purge ProductsB&B Pipe20" 500mm NOM 485-510mm INT PURGE, PRONTO SYSTEMItem #BBP1031Request InformationEmail Product LinkSpecificationsBrandB&B PipeColorRedDiameter20 inFeaturesThe inflatable dams and umbilical hose are covered withLength17 inProductPurge Bag SystemUsed ForBalancing gas levels for welding