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Air Tight Grommet for sealing hrv ducts or sewer pipes.
The easiest and safest way to achieve a full air tight sealing around ducts and pipes. No need to waste your time with conventional tape - the most "artworks", done this way, will not achieve a good permanent air tightness.
Our grommet is made of a special flexible rubber sheet and has a total dimension of 200 x 200mm.
4 strips of air tight tape will secure a permanent bonding to the membrane or other suitable surfaces.
If you´re in need of other dimensions or shapes, please feel free to contact us.