21.5×23.25×1 Air Filters

Transform your indoor air quality with the exceptional performance of our 21.5×23.25×1 Air Filters, available for convenient online purchase from Custom Filters Direct. These meticulously crafted 1-inch filters are engineered with precision to cater to both residential and commercial needs, offering unparalleled protection against a diverse range of airborne contaminants.

Key Features:

• Optimal Size: The filters boast a generous size of 21.5×23.25×1, with an actual size of 21.5 x 23.25 x 0.75. This meticulous sizing ensures a perfect fit into your HVAC system, maximizing the efficiency of your air filtration setup.
• Advanced Filtration: Safeguard your living or working space comprehensively with these filters. Designed to protect against pollen, dust, mold, dust mites, bacteria, pet dander, smoke, and viruses, they provide a versatile shield for various indoor environments.
• Enhanced Efficiency: Surpassing the capabilities of fiberglass filters, our 21.5×23.25×1 pleated air filters are proven to be at least 20 times more effective. Elevate your indoor air quality with superior filtration performance, ensuring a consistently clean and healthy environment.
• Made in the USA: Choose quality and reliability with the assurance that all our air filters are proudly manufactured in the United States. This commitment to domestic production guarantees meticulous craftsmanship and dependable performance.
• Durable Construction: The filter frames are meticulously crafted from heat-resistant paperboard with horizontal grid supports. Engineered to withstand temperatures up to 200°F and resistant to moisture, these frames excel in preventing microbial growth, outclassing traditional cardboard frames in durability.
• Corrosion-Resistant Support: Ensuring long-lasting performance, the media is robustly supported with a corrosion-resistant steel wire. This additional reinforcement enhances durability, making these air filters a reliable and enduring choice for your filtration needs.

Upgrade your air filtration system effortlessly – choose our 21.5×23.25×1 Air Filters from Custom Filters Direct for superior filtration efficiency and a healthier indoor environment. Breathe cleaner air with confidence.