Feature:1. Compability: The diesel parking heater air filter is fit for Webasto Heater; fit for Eberspacher Heater; please check your model before purchasing.2. Prevent Carbon Accumulation: The air filter can be used to replace the original filter element or screw directly on the intake pipe, filter the external air impurities, effectively prevent carbon accumulation.3. High Flow Filter: High flow filter, compatible with your original equipment, high flow air filter lets more air into the engine easily, creating better performance.4. Reliable Durability: Manufactured from premium steel wire and filter material, easy to remove and clean, washable and reusable design can be used continuously.5. Satisfied Service: If you have any questions of the product, please feel free to contact us. We will try our best to help you. Welcome to contact us at any time whenever.Specification:Item Type: Heater Air Filter Material: Steel wire +ABS+ filter screenFilter Caliber: 25mmFunction: Reusable design, can directly replace the original filter element or directly screw on the intake pipe, filter the external air impurities, effectively prevent carbon accumulationScope of Application: Universal for Heater with 25mm air intake pipes, such as for Webasto and for Eberspacher....Package List:1 x25mm Heater Air Filter Note:It is recommended to use air pump to clean the surface dust 12 times/month, if there is too much dust, it can be cleaned with water or neutral detergent