Metal mounting and fastening elements in most of the range of «Eiroplasts» products allows for laying air lines in any living space and public premise, providing a reliable connection for all elements of the ventilation system. EUROPLAST round ventilation system fittings with seals has M1 Cleanliness classification of air-handling components. Sheet metal air ducts and fittings with circular cross-section system meet the standards LVS EN 1506:2007 and LVS EN 10346:2015. Accordance to standard LVS EN 12237:2003 air ducts and fittings with seals- fulfils tightness class D.