Handle all windows and glass products with care. Handle all windows and glass products with care. Handle all windows and glass products with care. Handle all windows and glass products with care. Handle all windows and glass products with care. Handle all windows and glass products with care. Handle all windows and glass products with care. Handle all windows and glass products with care. Handle all windows and glass products with care. Handle all windows and glass products with care.

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ZTB 2002, low U-value kit for sun tunnel

Commercial Description
Low U-value kit ZTB lowers the U-value in an installation. There is no visible difference between a sun tunnel with or without the low U-value kit. The same discreet interior design is maintained. It consists of two layers of acrylic glass and a gasket. Only for 35 cm rigid and flexible sun tunnels.

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