A secure ventilation system allows you to deliver and remove air to your indoor growing area without the danger of leaks that could give your plants a problem for example if spores, mould or other harmful substances are introduced into the atmosphere. If you have a weak link anywhere in the system it could store up problems for your future growing, prevent crops from reaching their optimal growth and impacting on harvests. By using a Fast Clamp you get the ideal piece of equipment for securing the connections between carbon filters, fans, solid ducting and silencers. The strong metal band is lined with foam so there is a reduction in vibration noises. You can use these fast clamps in a wide range of ducting sizes, from 100mm (4") up to 315mm (12") in diameter. Make sure you measure first to get the right size for your system.