Keeping your cylinder protected from the elements when it is not connected to a regulator is important to your safety and the reliability of your Life Support System. Protect your cylinder DIN valve from water, dirt, dust and crawling critters. This non-corrosive Delrin Plastic DIN Protector Plug is the best kind to ensure proper protection. It threads in place and has an O-Ring seal to protect your cylinder valve from having water enter inside the delicate internal mechanism when washing your gear after diving.
One reason why the DIN Valve Male Plug is popular is because of its Easy To Use.