Combustion air vent for heat producing appliances.
Internal baffles reduce light and draughts. Verifiable equivalent area
calculation by Advantica. HETAS approved for use with solid fuel appliances.
Core drilled - suitable for retrofit installations. Grilles U.V. stabilised to
protect against fading. Tube: 127mm Dia. x 358mm L Grilles: 166mm L x 160mm H
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