Car Security & Safety. Green Cotton Air Filters are one of the best air filters in the market designed and developed from manufacturing and supplying premium cotton air filters to the racing and motorsport industry. All filters carry a 60,000-mile guarantee and create maximum airflow for your vehicle’s engine performance. The Green Cotton Air Filters are simple to fit, just remove your original filter from the airbox and “drop in” the Green Cotton Air Filter. Green Cotton Air Filters. Green Cotton Air Filters simply replace your existing standard air filter (element) and offer reduced restriction of the intake system thus optimising horsepower, throttle response, and torque. We have air filters for just about every car on the road. We design air filters to achieve high, virtually unrestricted air flow while maintaining filtration levels critical to ensure long engine life. All Filters carry a 60,000-mile guarantee. Easy to install – just remove your original filter from the airbox and “drop in” the Green Cotton Air Filter. Proper servicing and cleaning of your filter directly affects engine performance. The environment benefits as there is less waste going into landfill as the filter is fully re-usable. Less air pollution due to a small improvement in fuel economy as the engine will be running more efficiently. Green Cotton Air Filters provide the highest quality of air filters in the market, designed, and developed from manufacturing and supplying premium cotton air filters to the racing and motorsport industry. Most filters use a simple pressure molded injection process to bond the perimeter rubber to the filter. This results in rubber seeping onto the filter surface, creating a barrier. This barrier can reduce the surface area by up to 10-15% thus decreasing the amount of air flowing through the filter and reducing performance. However, Green Cotton Air Filters, use a more time-consuming and precise production process that virtually eliminates rubber seepage onto the filter surface thus maximising air flow and increasing engine performance. Deep Pleats in the double-layered cotton create a 10-20% increase in filtration surface area. This increase allows a greater volume of air to move more freely into the engine. Green Cotton Air Filter’s flexible rubber frame offers an airtight and secure fit inside the air box. PLEASE READ: Important Fitment Information. The second image is of the exact filter you will receive. Model: Monster 400 Dark IE. O/E Nos: 4261 01 11A. If you are unhappy with your order you are welcome to return it at your expense. You have up to 60 days to do this. We use the following household carriers dependant on the item ordered. Everything happens for a reason’. Following on from a redundancy in January 2020, father and daughter duo, Emma & Andy Williamson created The Urban Company (UK) LTD together. Andy has spent over 35 years within the Automotive trade and Emma has a passion for baby & beauty products with excellent knowledge in these areas of products. Emma was made redundant from Mothercare PLC in early January but wanted to continue to sell baby goods and Andy joined the business full time a few months later. The Urban Company specialises in Baby, Beauty, Auto and Pet products with plans to expand the ranges. We currently have over 50,000 listings on various online platforms.. Sign up to our newsletter for special deals.