Prima Klima K2601 Carbon Filter 360m3

The K2601 is the standard Eco-line filter for a one-square-metre grow tent. It runs at an ideal 360m3 per hour and tops out at 480m3 per hour. A 125mm flange matches every GT125 extractor fan, so the two clamp together with a short collar.

High-grade activated carbon gives roughly eight months of odour control before a refill is due. The filter stands 400mm tall and weighs 3.6kg, light enough to suspend above your plants. Growers running tomatoes, chillies or aromatic herbs use it to stop smells reaching the rest of the house. Fit it on the extraction side, after the canopy.