Custom Filters Direct (US) fresh discounts and promo codes for August 2025

Custom Size Air Filters

We provide custom-sized air filters to fit any system, including non-standard vents and older HVAC models. Made with the same premium American-made materials as our standard filters, they come in various MERV ratings for optimal air quality and efficiency. Simply share your measurements, and we’ll deliver a perfect fit every time.

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MERV 11 Air Filters

MERV 11 air filters trap fine particles like dust, pollen, and pet dander, improving overall air quality.

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Free Shipping with orders over $25.00

No need to wait—enjoy free shipping on all orders over $25. Get your filters delivered fast, and keep your air fresh without the extra wait.

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At Custom Filters Direct, we offer a variety of standard air filter sizes and shapes to fit every HVAC system.

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