The dektite is suitable for pipe penetration from 175mm to 330mm.
About the Cowl:
The unique design of these cowls provides efficient air exhaust expulsion that, unlike regular open-type roof cowls, offers superior protection from rain, rodents, and back drafts. The mushroom cowl is made of aluminium. Note that the colour differs from the image shown; most items are silver.
The cowl slips over the roof pipe to prevent rainwater running down the inside of the pipe.
Click here to download instructional information regarding installation.

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