The extension tunnel ZTR is used for extension of rigid sun tunnels TWR,TLR and TCR when the distance from roof to ceiling finish level exceeds 1.85 m. The tunnels of TWR,TLR and TCR can be extended with sections of ZTR up to a maximum of 6.0 m.
The extension tunnel can be purchased in 64cm and 124cm lengths.
- Building Materials
- Timber
- Insulation
- Doors & Floors
- Plastering
- Heating & Renewables
- Plumbing
- Bathrooms
- Outdoor & Landscaping
- Special Offers