DIN Plug w/ Pressure Release

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Highland Brass DIN Plug with Pressure Release The DIN Plug with pressure release is especially useful for tanks filled with oxygen, trimix, heliox, etc., where you literally cannot afford to accidentally loose gas. Machined from marine brass In case the valve is accidentally turned on, the push button vent allows trapped gas to escape for easy plug removal. SINGLE PLUG (picture for description purposes only) Show more