Hoffman ED3PBXM, Push Button Encl, Dome Cover, 3Pb X 22.5MmDrawn Pushbutton Enclosures are designed to hold 30.5-mm or 22.5-mm 4-way pushbuttons and switches. These enclosures have no welded seams or sharp corners.Features:Drawn 16 gauge steel; no welded seams or sharp cornersCover screws outside gasket sealing surfaceFlat or domed flanged coverGrounding nut in body of enclosureBonding provision on coverOil-resistant gasket External wall-mounting bracketsFactory stamped 4-way pushbutton holes