WORKSHOP Wet/Dry Vacs Vacuum Accessories WS25025A Muffler Diffuser Wet/Dry Shop Vacuum Attachment for Wet Dry Vacuum Cleaners, Fits Most 2-1/2-Inch Wet/Dry Vacuum Exhaust Ports

I've build'n adapter for my Kaercher WD 3, but the subjective result is not better than 10%.... Sorry, but no better info!

Esse é similar do original da Ridgid, mas gostei, é difícil achar esse produto no Brasil, impede a massa de ar de sair, o que é bom, mas não reduz tanto o ruído assim, encaixou na saída sem o adaptador.

Really helps with exhaust, it diffuses successfully preventing dust being blown all over. It makes a slight difference in noise, but only from the exhaust. This device cannot and is not designed to make the vacuum quieter because most of the noise comes from the motor. It does quiet the exhaust by decreasing it.

noise cut down 20% but dust and debris 85% great for small part upgrade works fine.Thank you

Encajo bien y redujo un poco el ruido