5 inch Twin Wall Adaptor to connect to the colt cowl mini rotorvent. Used to close off the insulation at the top of the system and connect to the rotor vent.
(M3 Bolts required, not supplied with this unit.)
Made from 304 Stainless Steel outer and 316 Stainless Steel inner. It is fully welded and has CE approval.
(Please note: We base all of our twin wall system on the internal diameter measurement).
Same day dispatch if ordered before 2pm.
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Our twin wall insulated is a simple push-fit joint system. Build your system by placing each piece on top of the previous and push together to make the join. This is the simplest system to construct on the market today.
Download Building Regulations Document J (effective October 2010) below
(Right click link, then select "save file as..")