Now Available: 300/355mm Twinwall Unperforated – The Smart Choice for Surface Water Drainage Projects 

At Radius CTS, our mission is to provide infrastructure solutions that are both innovative and fit-for-purpose. That’s why we’re excited to announce the launch of our newest Twinwall size: 300/355mm (ID/OD) – a robust and versatile solution designed specifically for surface water drainage applications.

This new addition strengthens our Twinwall range and gives contractors, civil engineers, and local authorities another reliable option when it comes to managing stormwater and surface water runoff efficiently.

 

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Why 300/355mm Twinwall?

The new 300/355mm Twinwall pipe size extends the range of our existing diameters, offering more flexibility for projects that require a balance between capacity and space-saving installation.

Whether you’re working on a housing development, highways project, commercial site, or agricultural land, this size is ideally suited for:

  • Surface water drainage
  • Stormwater attenuation systems
  • Culverts and outfalls
  • Soakaways and infiltration trenches

Built for Performance

Like all Radius CTS Twinwall pipes, the 300/355mm variant is manufactured from high-density polyethylene (HDPE) using a dual-wall design. The smooth inner wall ensures optimal flow performance, while the corrugated outer wall provides strength and resistance against ground loading.

Key features:

  • Lightweight and easy to handle – speeds up installation and reduces machinery needs
  • Excellent flow rates – smooth bore minimises blockages and sediment build-up
  • Durable and long-lasting – resistant to chemicals and abrasion
  • Compatible with standard couplers, fittings, and inspection chambers
  • BSI kitemarked
  • BBA approval pending

Designed with Installation in Mind

We know how critical it is to keep projects on time and on budget. The new 300/355mm Twinwall pipe is easy to transport, cut, and connect – reducing installation time and labour requirements on site.

Applications Across Sectors

This new Twinwall size offers a perfect solution for:

  • Civil engineering contractors looking for a mid-range drainage pipe
  • Highways authorities needing stormwater management solutions that meet regulatory demands
  • Developers and groundwork teams aiming to streamline residential and commercial drainage systems
  • Agricultural projects where durable, high-capacity drainage is key to land performance

Contact Us

The 300/355mm Twinwall pipe is in stock and ready for deliver. It’s just another example of how Radius CTS is responding to the evolving needs of our customers with smarter, better-performing infrastructure products.

Contact your Radius CTS representative today to discuss specifications, delivery options, or to request a sample.

 

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