Domestic sewers with improved noise absorption Polytron Stilte provide comfortable silence in the house. Thanks to the mineral-filled polypropylene composition, pipes effectively dampen structural noise, and the increased wall thickness does not conduct airborne noise. Thanks to the white color of the products, the system mounted of Polytron Stilte pipelines looks aesthetically attractive even in case of open laying. Polytron Stilte pipes and fittings are insured. Product warranty is 10 years.