VELUX ZTC 022 0003US Sun Tunnel 22" Fresnel Diffuser Plate



The VELUX ZTC 022 0003US is a 22" diffuser plate with a Fresnel design. This model features concentric honeycomb parabolic prisms which are designed to increase the diffusion capabilities of a VELUX sun tunnel. This means that this VELUX diffusion enhancer can bring more light into a room on days when outside light is insufficient.


  • Ceiling level diffuser features concentric honeycomb parabolic prisms
  • Designed to maximize light diffusion


  • Size: 22"


VELUX provides a wide-range of warranties for their line of sun tunnels. Depending on the product purchased, the following warranties may apply:

  • 20 Year VELUX Sun Tunnel Skylight Rigid Tunnel Limited Warranty
  • 10 Year VELUX Skylights and Sun Tunnel Skylights Limited Warranty
  • 5 Year VELUX Polycarbonate Clarity Limited Warranty
  • 5 Year VELUX Acrylic and Polycarbonate Skylights Limited Warranty (for Metro-lite and Dura-lite)

These warranties only apply if the product is finished, installed, operated and maintained strictly in accordance with VELUX instructions or other instructions furnished with the Covered Product. Improve Depot recommends a professional installation by a CERTIFIED INSTALLER to ensure that the product is protected by these warranties.

Normal wear and tear is not covered by VELUX's warranties, nor are problems arising from failure to properly maintain the product. Other restrictions apply, so be sure to read the included warranty information packaged with the product.

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