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VELUX Low U-value kit ZTB


Low U-value kit ZTB 0K14 2002 lowers the U-value in a standard installation. When fitted, there is no visible difference between a sun tunnel with or without the low U-value kit. The same, discrete interior design is maintained.

Low U-value kit ZTB

  • is very easily fitted - together with or after installation of the sun tunnel
  • consists of two layers of acrylic glass and a gasket
  • is available in size 0K14 only