Hammond 1554 Series Watertight Polycarbonate Enclosures – Hammond 1554B2GY, This watertight grey PC enclosure from Hammond measures 65 x 65 x 40mm and comes equipped with a flat lid. It is ideally suited for mounting printed circuit boards or DIN rail mounted components. Hammond 1554B2GY Watertight PC Enclosure 65 x 65 x 40mm Grey