Finest Filters are a leading supplier of high quality 100% aquarium safe filter wool. We have supplied the industry for almost 10 years and have a vast knowledge of aquarium and pond filter media. We have tried all densities of filter wool, and we believe the filter wool we offer is the best quality for sale in the UK today.

These filter wool rolls are a full 69cm wide (27 inches), and is available in 5-8mm, 12-15mm, 18-22mm, 25-30mm and 35-45mm thick - look out for others which are only 18 inches wide!

Please Note: The filter wool can vary in thickness along the full rolls so can differ above or below the quoted thickness along the length you receive.

We currently offer our filter wool in a range of thicknesses and roll lengths. Please select the required thickness and roll length from the drop down menu when ordering.

Our filter wool is totally aquatic safe, and is not treated with any chemicals, so it will not harm your fish. We have been using this in our tanks and pond for many years with great results. This filter wool works on the principle of electrostatic attraction. This is where the waste particles from your aquarium/pond will stick to the filter wool like a magnet. This method of filtration is very effective at removing waste particles from the water column.

Our filter wool is ideal for use within all filter types, including internal filters, external filters and pond filters alike. This filter wool can also be used in both freshwater and saltwater aquariums. Simply cut the filter wool to size using scissors.

Please Note: Depending on roll size and thickness, this filter wool may be vacuum packaged to allow for easy transport. Once filter wool arrives, please remove all packaging and allow 24-48 hours for the filter wool to expand to within the quoted thickness range.

Full rolls (priced at £59.99 and over) are dispatched with free Next Day DPD delivery.