Riser rings are load tested to ensure dependable strength and long-lasting durability, and are DOT approved in many states. Risers are manufactured and assembled in the USA from domestic A-36 steel or ASTM 48/Class 35B gray iron. Talk to an expert at EJ to find out how the innovative solutions by EJ can work for your next project.

Pavement riser rings save contractors a significant amount of money by not having to dig up a manhole frame and cover to raise it during resurfacing. Pavement riser rings are available in solid cast iron or an expandable diameter steel riser.

Our Expandable Manhole Riser, often referred to as Manhole Cover Lifters, Extension Rings, Paving Risers, Repaving Rings, Adjusting Rings or Riser Rings, have an unsurpassed reliability, track record, and performance.

The INFRA-RISER ® multi-purpose rubber composite adjustment riser by EJ is engineered to adjust manhole covers and catch basins to grade. It’s a simple, economic, and long-lasting solution that separates the surfaces, preventing water infiltration and traffic vibration damage to concrete and masonry structures, thus extending their lifetime.

Choose from our selection of riser rings, including over 325 products in a wide range of styles and sizes. Same and Next Day Delivery.

Founded in 1978, American Highway Products Ltd. manufactures the highest quality manhole riser products, including the Pivoted Turnbuckle Manhole Riser, the most powerful expanding manhole riser available today. We also manufacture catch basin/inlet risers and a compression water/gas box riser.

Our Inclined Manhole Adjusting Riser Rings feature a turnbuckle linkage pivoted at each end to provide the ultimate means to expand a manhole riser. This construction allows efficient application of a screw.

Turner Manhole Riser Rings provide a cost-effective solution for all road and utility maintenance needs. They are designed to raise castings to grade before or after resurfacing. Advanced technology Made from proprietary molds that are precisely machined to exact dimensions of manhole casting

The Turner Company manhole and water valve extension ring is designed to raise castings to grade prior to or after resurfacing. Turner manhole rings are an injection-molded, polypropylene and fiberglass product that is resistant to UV rays, petroleum by …

300-24® 2.5x standard cast iron 2-1/2″ tall riser ring for the 300-24® series manholes. Stock item. Uncoated ASTM A48 Gray Iron CL35B or better, AASHTO M306. H-20 traffic rated when used with an H-20 traffic rated ring and cover or grate that …