Uploaded December 2016 | Updated September 2026, 1 hour ago

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A 60 second overview of the NEW Osma Acoustic Coupler 4S125 designed to limit noise in soil stacks from expansion and structural borne sound. For more details, watch our in depth video youtu.be/nQW9jI8i9pk expanding on the benefits and also covering design detail and installing the fitting.

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