THE ABSOLUTE DOGS NUTS !!
This baby has absolutely no impedance noise what so ever. worth every penny to a grower who wants a silent running system . Dynamic frequency control is the only way to go !
Accept no substitute ………
A big seller , we move loads of..
Good filter , good for 6-8 months with..
This German made extraction fan is low wattage..
Unit 8, Venture Business Park Weir Lane Worcester WR2 4GD