-
Concerete rings and covers
Features • Available with 1/2″ and 3/4″ KO • Available in multiple depths • Mounting tabs allow for quick and easy installation • Sealed KOs prevent wet concrete and water from entering the box Applications • Octagon concrete boxes with 1/2″ & 3/4″ side knockouts are used in poured concrete construction. • Install on wooden or steel concrete forms, once the forms are removed the boxes and conduit are buried in concrete and the end is open to the room wall or ceilin...