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Leak tightness class D+ more than achieved!

Reviewed high performance

VENTAFLEX® air ducts excel the strict requirements of the leak tightness classes by up to 99%

New legal requirements, increasing energy prices and other exterior conditions consistently challenge the Research and Development department at VENTAFLEX: VENTAFLEX products are permanently developed further by meeting the latest technological standards – sucessfully.

The tightness flyer as a pdf file can be found here 

Download leak tightness sector


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