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 + ½” Standard sizes stocked in 2” & 3” rises May be stacked for increased height
Adjustable – Steel Adjust in or out ½” in diametervariance Pivoted turnbuckle for positivegripping power Installs in minutes Minimum vertical rise as little as ¾” – useful in modernpaving operations where minimum rise is required
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 ¾” rise and goes up in ¼” increments Provide grate size, thickness, top of hole, bottom of holeon seat and clear ID inside frame
Incline – Steel The adjustment ring forsloped surfaces Minimum rise is 1-1/2” Goes up in ½” increments Up to 5” has a turnbuckle 6” and up are solid steel

Solid – Cast Iron