Top rings

Efficient Height Adjustment for Modern Manhole Systems

Letbek’s Top Rings are engineered for precise and stable height adjustment in manhole systems and are used in combination with cones and covers for utility, road, and drainage applications. With more than 40 years of experience in injection moulding and plastic component development, Letbek is a leading manufacturer of durable and user-friendly manhole accessories.

Produced in Denmark from 100% recyclable plastic, Letbek top rings offer a unique combination of high strength and low weight. This reduces the need for heavy lifting, improving on-site ergonomics without compromising on performance or lifespan.

Key Benefits of Letbek Top Rings:

• Manufactured from impact-resistant plastic – durable and long-lasting

• Lightweight design – improves handling and reduces strain

• Compatible with existing manhole systems, including concrete ring structures

• Available in a wide range of diameters, heights and designs
  – including top rings with fold, for curbstones, or with breaking line

• Custom solutions available for special dimensions and site-specific needs

• Designed and manufactured in Denmark with a focus on fit, strength and precision

Letbek’s top rings can be easily integrated into complete manhole systems together with cones, covers, and well frame solutions. Whether for new installations or upgrades, these components ensure efficient, modular and maintenance-friendly chamber construction.

Need help selecting the right size or a tailor-made solution for your project?
Contact us – our team is ready to assist with technical guidance.