This efficient no-smell filter is indispensable in each waste water system. Installation in the breather line prevents unpleasant odours to escape. Each waste water tank requires an air breather line through which unpleasant odours may escape. This can be prevented by installing a VETUS no-smell filter into the breather line. The no-smell filter element contains a special odour-absorbingmaterial. The filter can be installed very easily. Model NSF38 is suitable for Ø 38 mm breather hose. The filter element is exchangeable and should be renewed once a year.