2pcs Dust Cap for Din Scuba Tank Valve Dive Air Cylinder Bottle Valve Cap – Blue, as described

About this item Resist salt, sediment buildup, corrosion and damage from normal use. They prevent dirt and/or other materials from entering your tank valves between dives. High quality aluminum material, sturdy, anti-corrosion and durable. The dust cap plug is vented so that the presence of high-pressure gas does not trap the plug, making it difficult to remove. Retainer cord included.Easy to install and replace.