[Extra Large Size & Cuttable]RV air conditioner replacement filter measures 16 x 40 inch, can be cut to any size you want, perfect for all kinds of RV//travel trailer air conditioners. The extra large size is enough to use for a long time. [Effective Filtration]The rv ac filter replacement is specially designed to your RV, , trailer. It is made of 50PPI filter foam with better adsorption and filtration effect, which can effectively filter airborne particles such as hair, dust, pollen and smoke, thus prolonging the lifespan of your RV air conditioner. [Enjoy Air]thickness super strong filtration effect, it can effectively purify the air, bring fresh air to your RV, improve the quality of the air inside the RV, and make your journey more enjoyable. [Regular Replacement]Because the air conditioner replacement filter are vacuum packed, it is recommended that you open the package and let it sit for 2-3 days before use. For optimal performance, It is recommended that the filter be replaced every 1-2 months. Colour:Black Material:Sponge Package Contents: 1x RV A/C Filters Replacement Only 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.