use
To extend Type W to accommodate
masonry of greater thickness.
introduction
The Type W extension duct is
designed to push-fit onto the Type
W Caviweep/Cavivent.It converts
the standard Type W into a
305mm straight through model.It
may also be used to extend the
Type W when employed within a
solid retaining wall to provide
moisture release.
data
•Material polypropylene.
•Colour grey.
•Size:200/225 x 65 x 10mm.
•320mm˛
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