nVent Hoffman Hazardous Location Hole Seal Suitable for 2 1/2" Conduit or M75 76mm Stainless Steel Metallic

76x76x26mm. Secure sealing with silicon rubber gasket. Sealed pushbutton holes, conduit openings and knockout openings against dust, dirt, oil and water. Easy installation in enclosure cutouts with self-centering hole seals.