10 Best Evaporative Cooler Filters 2025 in the United States

The MasterCool 12 inch Rigid Media Pad is designed for evaporative coolers with a capacity of 4800 CFM. It's made with premium CELdek media, which is known for its high efficiency and strong, durable construction. The multi-layer design further enhances its efficiency, making it a solid choice for those looking to maximize cooling performance.

Additionally, it's GREENGUARD Certified, ensuring no harmful emissions, which is a plus for those concerned about air quality and environmental impact. This filter is easily installed in existing coolers without requiring any assembly, making it user-friendly. The dimensions (12 x 41.25 x 22.88 inches) should fit most standard coolers, but it's always good to double-check compatibility with your specific model.

Weighing 15 pounds, it might be a bit heavy for some users to handle during installation. The cardboard material is relatively durable but may require regular maintenance to ensure optimal performance. In terms of cost, while the price isn't listed, the premium materials and certification might suggest it's on the higher end.

The MasterCool 8-inch Rigid Media Pad, model 110133-1 by Champion Cooler, is a high-quality filter option for evaporative coolers. It boasts a premium CELdek media, known for its durability and efficiency, ensuring a robust cooling performance. With dimensions of 41.25 x 22.25 x 8 inches and a weight of 10.78 pounds, it fits well in a variety of evaporative coolers that support 4800 CFM, making it quite versatile in terms of compatibility.

One of its significant advantages is its multi-layer design, which enhances its efficiency and longevity, reducing the frequency of maintenance needed. Additionally, the GREENGUARD certification assures users that the product is environmentally friendly and free from harmful emissions, which is a great plus for health-conscious buyers. On the downside, the material is cardboard, which may not be as durable as synthetic alternatives, especially in very humid environments.

Also, while it is easy to install, it might still require some effort for those unfamiliar with replacing evaporative cooler filters. In summary, this filter is highly efficient, durable, and environmentally friendly, making it a strong contender for those looking to maintain or improve their evaporative cooler’s performance.

The Hessaire Replacement Evaporative Cooler Pads are designed specifically for certain Hessaire mobile cooler models, ensuring perfect compatibility with MC61M, M250, and MFC6000 units. These pads use a corrugated Xel50 media filter, which is known for maintaining consistent water flow and reliable cooling performance. Because the pads come factory-fitted, installation is straightforward and hassle-free, making maintenance simpler and reducing wear on your cooler’s pump. These pads are also odorless, helping keep the air fresh without any unpleasant smells during operation.

They have a sturdy build that supports long-lasting use, which aligns well with Hessaire’s reputation for energy-efficient, low-noise cooling solutions. At 4 panels measuring 28” x 10” each, these pads cover a good area for the 1300 CFM airflow rating of the compatible coolers. The product has strong customer reviews (4.7 out of 5 stars from over 470 users), highlighting reliability and good value.

It is important to note that these pads are made for specific models, so they are not universal; if your cooler is different, these won’t fit. Additionally, while the price is reasonable, replacing pads regularly is an ongoing cost to consider. For owners of the supported Hessaire coolers, these pads offer an efficient and odor-free cooling solution without complicated setup.