Municipal > Sanitary Stormwater > Grade Adjustment Systems
Tags: Casting Grade, Civil, Cretex, Infrastructure, Lightweight, Manhole, Manhole Adjustment Rings, Manhole Adjustment System, Manhole Adjustment Systems, Manhole Toolbox, Municipal, Pro-Ring, ProRing, Rectangular, Round, Square, Storm Drains, Stormwater
PRO-RING™ is the only manhole grade adjustment system made from Expanded Polypropylene (EPP). The material is renowned for its ability to stand up to the harshest of conditions without damage or deformity for many years. PRO-RING™ products provide a proven alternative to concrete grade or adjustment rings and is the most advanced concrete-alternative manhole grade adjustment system available anywhere.
SAFETY - It usually takes four people to lift a concrete grade ring, each one risking back injury. A 6" PRO-RING™ weights only 6 Kg (14 pounds). Where concrete rings break and can cause injury, the PRO-RING™ system eliminates that hazard, helping reduce comp claims.
EFFICIENCY - One person can easily install the PRO-RING™ system in just minutes. People are always amazed at our demonstration. The rings nest together and include a finishing ring and a slope adjustment ring for a precision fit.
FAST AND COST EFFECTIVE - PRO-RING™ products speed manhole installation and repair dramatically, allowing the site to be closed in one day and reducing overall cost from 20% to 30% based on conditions. No water, sand mortar or bricks are needed, just a few simple tools.
Add an optional angle ring to allow conformity to sloped road surfaces.
AVAILABLE IN A WIDE RANGE OF SIZES AND SHAPES. Cretex Pro Rings are not just for round manholes. They are also available in rectangular and square sizes to fit catch basins or other infrastructure. See brochure below for details.