This is a carton of 8 x F8 box filters including the “Ventsure” replacement filter and easy to follow DIY instructions. This purchase is good for commercial installers who are looking for the best value, can buy in quantity and can source their own duct tape for installation.

The filter is made from internationally rated F8 high efficiency filter material and manufactured in a deep pleat form to maximise air flow and make a strong hardy filter. It has a machine sealed core and a sealing lip that, once tapped will prevent air bypassing the filter.

The filter should last 12 months before needing replacement.