Castle Filters HVAC Furnace Filter, MERV 8, 20x25x1, 1 Year Supply

Introducing the Castle air filter, a new innovative HVAC filter designed to last up to a year. With the ability to collect as much dust as 20 regular pleated filters, this high-performing filter is a game-changer. Its high air-flow, open-cell, triple-layer core, and tacky media for collecting dust are capable of removing 93% of the most harmful airborne particles in your home (>5 microns). Treat yourself and your HVAC system to longer lasting filtration with the Castle air filter.

Featuring patented filter technology, Castle Filters use 3 layers of ¼-inch open-celled foam, including a patented tacky center layer that catches dust like fly paper. Proudly made in the USA - US patent #10,183,249 B2.

With a High-Flow MERV 8 rating, the Castle air filter effectively removes 93% of the most harmful dust particles, providing superior protection for your equipment and home while still allowing maximum air-flow.

The Castle Filters have 400% more surface area for dust and other particles to collect, and the internal foam is treated with a sticky material to collect more dust while letting the air pass through.

Unlike pleated filters that need to be replaced about once a month, the Castle Air Filter lasts one year, holding up to 20 times more dust. This is 4-12x longer than other filters, providing convenience and cost savings.

In addition to the convenience and cost savings, the Castle Air Filter also helps you save energy with its advanced filtration technology and contributes to lower waste generation, as it does not need to be changed every month like a standard filter.

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