Part No.: EPL03 Electrical Pneumatic Plug Lockout Pneumatic plug lock Electrical and pneumatic connector lockout devices are available for isolating equipment from electrical and compressed air sources.Made of strong Polystyrene material.Several different hole sizes allow our Prinzing Electrical Pneumatic Plug Lockout to be used for a variety of electrical plugs (up to 3 1/2" in diameter and 5" in length) Holes are designed to fit "necked down" pneumatic male fittings commonly attached to compressed air hoses.Available for all kinds of electrical and pneumatic plugs.Recommended to use in combination with a padlock for added safety. SPECIFICATION: Part No. DESCRIPTION EPL03For 110V, 220V and 550V plugs.