The Kroil Original Penetrant Aerosol is a powerful industry-proven penetrating oil that has been trusted by professionals and experienced DIYers since 1939. This 13 oz aerosol formula quickly loosens rusted nuts and bolts frees frozen shafts and pulleys and penetrates the smallest openings threads and crevices.Kroil Original Penetrant Aerosol - 13 oz sizeProfessional-grade penetrating oil used since 1939Quickly loosens rusted nuts bolts and frozen componentsPenetrates tight spaces and smallest openingsRemoves and prevents rust cleans and lubricatesDisplaces moisture for corrosion protectionNSF Nonfood Compounds Program Listed (Category Code: H2 Registration #165745)50-State VOC CompliantMade in the U.S.A.Perfect for automotive repair industrial maintenance and household projects where corrosion and seized components are challenges. The aerosol delivery ensures precise application even in the most confined spaces.