Manhole Adjusting Rings and Riser Rings

Solid Cast Iron

  • Most economical option
  • Cast from Class 30 gray iron
  • Machined to fit existing covers in street
  • Minimum vertical rise = lid thickness +
  • Standard sizes stocked in 2 & 3 rises
  • May be stacked for increased height
  • Incline - Steel

    Adjustable Steel

  • Adjust in or out in diametervariance
  • Pivoted turnbuckle for positivegripping power
  • Installs in minutes
  • Minimum vertical rise as little as useful in modernpaving operations where minimum rise is required
  • Incline - Steel

    Water Valve Risers Cast Iron

  • For 7-1/4 diameter covers
  • Stocked in 1 1-1/2 2 3 and 4
  • Catch Basin Risers Steel

    Square or Rectangular
  • Fabricated to your specs.
  • Made in America
  • Starts at rise and goes up in increments
  • Provide grate size, thickness, top of hole, bottom of holeon seat and clear ID inside frame
  • Incline - Steel

    Incline Steel

  • The adjustment ring forsloped surfaces
  • Minimum rise is 1-1/2
  • Goes up in increments
  • Up to 5 has a turnbuckle
  • 6 and up are solid steel
  • Incline - Steel

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