Polylok 12″ Distribution Box – Cincinnati


It comes with stabilizing feet to anchor the box. 12" Inside Diameter Rain Grate Cover
  • Carefully cut out required opening in the box with a knife.
  • Install seal from INSIDE the box.
    Screw on the nut from OUTSIDE the box.
  • Tighten to provide a watertight seal.
  • Remove the correct size tear out on the seal. TEAR OUT- DO NOT CUT OUT.
  • Slide the pipe into the seal.
  • Snap the stabilizing feet into the sockets at the base of the box. (12" only)


  • Use as Rain Drain, D-Box, or Drop Box; allows for all configurations
  • Use as a rain drain for gutters, driveways & sub surface drainage
  • Use as a distribution box or drop box for onsite septic systems
  • Use with the 12'' riser to bring cover or grate to grade as needed
  • Accepts 2'', 3'', 4'' and corrugated pipe
  • Use with solid cover or grate, your choice, no additional cost
  • Four stabilizing feet with every box