Inaba Denko Trunking

The Slimduct SD range of trunking from Inaba Denko is engineered for residential and commercial properties to conceal, protect and beautify linesets from weather damage, vandalism and pests. It has unlimited applications for various configurations and can be used for both HVAC and plumbing installations.

Easy to install and available in 5 colours, 3 sizes is UV stabilized and flame resistant PVC.
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Frequently Asked Questions About Inaba Denko Products
What are the advantages of using Inaba Denko Slimduct trunking in HVAC projects?
Inaba Denko Slimduct trunking provides clean, practical protection for pipework and insulation in both indoor and outdoor settings. Units like the Inaba Denko 140mm Black Trunking offer a durable solution that shields refrigeration lines from weather and accidental damage.
The PVC finish is UV-stabilised, meaning it holds up well in exposed environments. Components such as elbows, wall covers, and flexible joints integrate easily, so installers can route lines neatly around obstacles without relying on makeshift fittings. Whether you’re working on a residential retrofit or a larger-scale commercial job, Inaba Denko trunking supports long-term system integrity while keeping installs visually professional.

Is Inaba Denko trunking appropriate for both residential and commercial installs?
Yes. The full range of Inaba Denko trunking is designed for versatility across property types. In smaller residential projects, the 75mm Slimduct trunking fits snugly and unobtrusively around pipework, helping maintain a clean finish against interior or exterior walls.
For commercial applications or high-capacity systems, larger options like the 140mm trunking offer more internal space to accommodate bundled lines or additional insulation. Regardless of size, every component is made to the same high standard, so you can specify Inaba Denko accessories with confidence whether you’re working on a domestic split unit or a multi-floor VRF install.

How does Inaba Denko Slimduct help extend the life of HVAC systems?
Unprotected pipework is vulnerable to UV, impact damage and weather – all of which can degrade insulation, create refrigerant leaks, or stress connections. The Inaba Denko Slimduct system helps mitigate these risks by providing a sealed route for linesets.
With options like Inaba Denko Flexible Joints, installers can accommodate natural pipe movement without stressing brazed joints. This not only reduces maintenance over time, it helps systems run efficiently and remain compliant with F-Gas regulations. Over time, proper trunking with sealed fittings reduces callouts due to damaged insulation or condensate drips, particularly in exposed or high-traffic areas.