... & TRAP,THROW-AWAY LID.SIDE BLANK 20MM & 25MM KNOCKOUTS floor box,distribution boxes,enclosure,electrical outletPLASTIC COVER WITH IRON BODY.ALSO ... OF PLASTIC COVER AND ALUMINIUM BODY.250X250X75MM UNDER FLOOR SERVICE BOX C/W 3PLATES,FRAME & TRAP,THROW-AWAY LID.SIDE BLANK ...