Grilles, Diffusers & Cowls

The extraction grilles here are sorted into internal and external although some are suitable for both. Diffusers supply air and the grilles normally extract. Most have a connection on the back for ducting but some require a plenum box. The roof cowls section also contains flashings etc for fitting.
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Reviews
TD-SILENT 350/125
TD-SILENT 350/125
£ 145.61

Excellent low noise fan, I've got one unit running years and...