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

Introducing the Castle air filter, an innovative HVAC filter designed to last up to a year. This new filter is capable of collecting as much dust as 20 regular pleated filters, thanks to its high air-flow, open-cell, triple-layer core with a tacky media for collecting dust. It effectively removes 93% of the most harmful airborne particles in your home (>5 microns), providing longer lasting filtration for both you and your HVAC system.

The patented filter technology used in Castle Filters incorporates 3 layers of ¼-inch open-celled foam, with a patented tacky center layer that catches dust like fly paper. Proudly made in the USA, this advanced filter holds US patent #10,183,249 B2.

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

Castle Filters have 400% more surface area for dust and other particles to collect, with internal foam treated with a sticky material to collect more dust while allowing air to pass through. The furnace filter holds up to 20 times more dust than a pleated filter, lasting one year which is 4-12x longer than standard filters that need to be replaced monthly.

Not only does the Castle Air Filter provide advanced filtration technology to help you save energy, but it also contributes to less waste generation as it does not need to be changed every month like a standard filter. Choose Castle Filters for longer lasting, effective filtration for your home and HVAC system.

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