This 5" carbon filter comes with a 5" flange suited to the RVK 5" extractor fan and it's output. Size 125mm x 200mm.

Carbon filters are scrubbers that remove the smell from the air that is being vented out of the growroom. These carbon filters are of the highest quality. CKV-3 is steam activated extruded carbon, made of specially selected high quality bituminous coal. This type has a very high mechanical resistance and a well-developed pore structure, making it extremely suitable for absorption of a large range of organic components from gas and airflows. Ideally one of these carbon filters should be changed or re-lined with fresh carbon approximately every 14 months for continued effective odour control.Please don't confuse these with cheaper, less dense and shorter life filters which over time cost you considerably more!