VELUX Sun Tunnels TWF OK14, TWR OK14 and ZTR OK14

  • $378.00
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The VELUX Sun Tunnel has been designed to make installation quick and easy. Tube assembly is simple, so little time is spent in the roof cavity.

The VELUX flexible (TWF) and rigid (TWR) Sun Tunnels provide installation flexibility. Rigid tunnels are most suited to roof space with minimal obstructions. They have a highly reflective shaft to achieve maximum light output. Flexible tunnels can be used when obstructions in the roof cavity prevent the use of rigid sun Tunnels.

Product Features:

VELUX Sun Tunnels for pitched roofs are designed to provide natural light into corridors, stairwells, powder rooms and cupboards; where installation of a VELUX Skylight is not possible

  • Bushfire rating of BAL 29 (applicable to TWR installed between 18-60°)
  • Choice of highly reflective rigid or flexible tunnel (350mm diameter, lengths vary)
  • 4mm toughened external glass
  • Dual-layered ceiling diffuser - spreads light over an area of up to 9m²
  • Interior diffuser with 'Edge Glow' design
  • Outer polyurethane cappings with integrated flashings for tiled/corrugated iron roofs
  • 'Stay Clean' coating on glass exterior to reduce cleaning frequency


  • TWF OK14 Sun Tunnel with flexible shaft – 2200mm long, 350mm diameter
  • TWR OK14 Sun Tunnel with rigid shaft – 1650mm long, 350mm diameter
  • ZTR OK14 Rigid extension – 1240mm (NOT suitable for TWF)

Package complete with integrated flashing for tiled or corrugated iron roofs (not suitable for metal profiles such as Klip-Lok, Trimdek), tunnel and ceiling diffuser. Sun Tunnels are not suitable for roof pitches below 15°.

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