The fischer DuoSeal is a 2-component plug that completely seals the drill hole without silicone in all wet areas. The plastic plug has been independently tested with the screw included in the set by the Testing and Certification Institute of the Acid Fliesner Association. The watertightness is confirmed in accordance with ETAG 022 and DIN 18534 up to water exposure class W3-I. Taking into account the nationally and internationally applicable sealing standards in wet areas, the DuoSeal in combination with the enclosed screw is suitable for applications in commercial, private and public wet areas that are very frequently exposed to splash water and temporarily accumulating water. The generally applicable national regulations for the use of anchors in wet areas must be observed. For the German market, it is recommended that DuoSeal is only used up to water exposure class W1-I, as unplanned penetrations from W2-I in accordance with DIN 18534 are not currently envisaged.