Keep debris out of your DIN tank valve and clearly identify your cylinders with this custom DIN tank valve dust cap, designed for storage and transport use. Each cap includes printed identification text, making it easy to distinguish tanks on the boat, in the truck, or in storage. The cap installs by hand and features a textured exterior for easy handling, even with wet or gloved hands. Compatible with both 200 bar and 300 bar DIN tank valves. This product is intended strictly as a dust cap and should be removed before pressurizing or diving. Features:• DIN tank valve dust cap for scuba cylinders• Includes a nylon string for easy safe keeping when not in use• Printed identification text• Choice of cap color and text color• Textured grip for easy installation and removal Notes:• Intended for storage and transport use only• Not a sealing or pressure-rated component• Remove before opening the valve or diving