American Highway Products

Pivoted Turnbuckle Manhole Riser

The pivoted turnbuckle manhole riser is a quick, powerful expanding device with positive gripping power.

  • 1-inch diametric variance (+/- 1/2 inch adjustment on diameter from mean diameter)
  • 3/4 inch and up rise available in 1/4-inch increments
  • Will not break from installation forces or eneven manhole frame
  • Turnbuckle linkage ensures a pressed in bearing fit when installed

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