The replacement RV air filters.Precisely cut (14 x 7.5 inch),it is compatible with filter numbers 3313107.103 & 3105012.003 & 3104928.019 for duo RV[Enjoy Air]: The dust and other harmful substances outside the during the journey always threaten the health of passengers. Installing this RV ac filter can create protection for your respiratory health. It will well filter the dust, hair, pollen, etc. entering the car to that you and your family and healthy air. At the same time, it will reduce the difficulty and frequency of cleaning your car[Reusable and Washable]: This filter is made of advanced high density filter foam material. It has a compact structure and is not easy to block. It can be washed clean with water and reused for many times, saving a large bill for your travel and RV. it can captures debris, dust particles and hair in the air efficiently, doesn't get stuck in your AC. This also helps to extend the life of your unit[4 Packs]: Enough for using for 2 years or more. It is recommended that you clean the filter once every 3 months. Our RV air conditioner filter can be well observed its working condition. clean the filter in time will help it to be in the best condition. It is very easy to dry and you can reinstall it soon after cleaning. You can reuse it. It's too cheapColour:BlueMaterial:spongePackage Contents:4 x RV AC Filter ReusableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.