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This metric diameter pipe is used for installing ventilation pipe wherever it is outside your home. Because the ventilation system is a chimney system, ventilation pipe outside your home needs to be insulated to keep the air flow within the BioLet composting system flowing. 4' included with your toilet.

Kit contains:

1 - 22" section 108 mm black vent pipe belled 1 end

1 - 2' sections 54 mm white vent, belled 1 end

1 - 22"- Styrofoam insulation