We have been manufacturing and supplying the Pivoted Turnbuckle, Steel Expandable Manhole Riser since 1978. Engineering principles were applied to achieve the most efficient means to expand a ring into a manhole frame. The installation does not require any special skills, training or materials to achieve a reliable installation. This reliable installation is achieved by simply applying torque on the turnbuckle, using a screw driver as a lever.

Our Unique Turnbuckle Expansion Mechanism is what makes our riser superior to all other risers. This is accomplished using a pivoted turnbuckle that allows the maximum efficient mechanical means to expand a manhole riser. This enables full circumference engagement on expansion of a manhole riser in the frame, providing an installation similar to a pressed in bearing.

We specialize in manhole risers, and can accommodate any diameter and height needed for adjusting manhole frames. Our products are designed by registered Professional Engineers and far exceed the performance of other risers. We are committed to superior quality, rapid turnaround time, and great customer service making us the leaders in our industry.

If you need any other information concerning our Pivoted Turnbuckle Steel Expandable Manhole Riser please do not hesitate to call me at (330) 874-3270 or page me (toll free) at 1-888-780-1204. Have a great day.