Meet the ORIGINAL HDPE Manhole & Catch Basin Adjustment Rings.
Replace failing concrete rings with lightweight HDPE for faster installs, fewer repairs, and decades of proven performance.
Request Free DemoWhy Choose LadTech?
Mortar-free, drop-in assembly. No mixing, no curing, no hassle.
Proven performance. HS-25 rated, ASTM 4976 compliant, 30-year warranty, 75–100 year design life.
Sustainable by design. PFAS-free materials and reduced landfill waste.
Corrosion-proof and chemical-resistant. Stands up to H₂S, salt, and freeze-thaw conditions.
Built America, Buy America compliant. Made in Sparta, WI, from 100% recycled domestic HDPE.
Compare With Concrete Rings
| Features | Concrete Rings | LadTech HDPE Rings |
|---|---|---|
| Installation Ease | Heavy, mortar, slow cure |
 Lightweight, mortar-free, fast assembly
|
| Durability | Crack and corrode |
Corrosion-proof, HS-25 rated, 100-year life
|
| Chemical Resistance | Prone to degradation |
Immune to H₂S, road chemicals
|
| Environmental Impact | Resource-intensive |
Made from 100% recycled US HDPE
|
| Warranty | Often minimal |
30-year backed, free replacements
|
Engineered for Every Need
Multiple slope and spacer options. Provides precise grade control in ¼″ increments.
Wide range of sizes. Compatible with standard cone sizes (24″ to 36″).
Installation guidance available. Step-by-step PDFs and videos provided.
Proven Reliability
Installed across the U.S. for over 30 years with zero product failures
Backed by ASTM standards, HS-25 certification, and long-term success in municipal use
Field-tested from Alaska to
the Bahamas
Who We Serve
Contractors
Save labor and equipment costs. No mortar or cure time.
Engineers
Specify confidently with ASTM and AASHTO-compliant systems.
Municipalities and DOTs
Reduce I&I, meet Buy America compliance, and increase infrastructure lifespan.
Request Free Demo
Testimonials
Municipal Project Supervisor
“Installed HDPE rings and a composite Supercover to make the manhole chimney watertight—no I&I.”
Municipal Project Supervisor
“Outlasts and outperforms traditional concrete solutions.”
Municipal Project Supervisor
“Installed HDPE rings and a composite Supercover to make the manhole chimney watertight—no I&I.”
Contact
Get in Touch
Corporate Office info
902 Barton Ave NW Buffalo,
MN 55313
adjring@ladtech.com
Phone: 651-415-1252
Toll-Free: 877-ADJ-RING (235-7464)
