Grade R Twin Line Welding Hose, 3 8 in x 100 ft, BB Fittings, Acetylene and Oxygen no checkout or losing opacity Valve action mechanism or losing opacity Valve action mechanism prevents paint in barrel from drying when cap is left off Bullet tips are replaceable to assure complete use of paint in each marker Heavy duty aluminum body with large paint capacity rot or discolor Will not absorb water and rinses clean Wide flare on ends allows close to curb sweeping Use for wet or dry sweeping where a rugged broom is required High quality Grade R twin line welding hoses Green hose carries oxygen to welding equipment Red hose carries acetylene Hose cover resists oils