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.
0 items
Plastic Louvre Shutter - WSK
Plastic Louvre Shutter - WSK
£ 20.95 now £ 18.95
Reviews
Transformer (silent) speed controller - RE
Transformer (silent) speed controller - RE
£ 92.50

Unbelievable! With TDmixvent500: noise reduction minimum 50%...