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Turner manhole riser rings address a major dilemma facing today’s street maintenance departments by raising manhole castings to grade quickly and inexpensively, yet permanently. 

  • Can be installed in under a minute and have saved our customers millions of dollars, thousands of work and crew hours and solved noise complaints from rattling manhole lids
  • Turner manhole rings are fabricated by injecting a polypropylene and fiberglass mixture into a mold under great pressure
  • The mold is made of carbon steel that is machined to the exact dimension of your manhole casting
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