Ultravation 91-012 16x20x5 MERV 11 ProgressiveMedia Filter – 4 Pack

The Ultravation 91-012 is the OEM replacement filter for Ultravation whole-house air cleaners and compatible systems requiring a 16" × 20" × 5" cartridge. It delivers MERV 11 performance using Ultravation’s ProgressiveMedia™ and UltraStrand™ technologies for reliable indoor air quality improvement.

ProgressiveMedia™ Filtration

Captures up to 99% of particles ≥ 5 microns (e.g., pollen, household dust) with a pleated, layered design offering 9× more surface area than flat filters—supporting high dust-holding capacity and low airflow resistance.

UltraStrand™ Fiber Technology

Built with hypoallergenic, electrostatically charged UltraStrand™ fibers to attract and retain airborne particles. Consistent performance throughout the service life with no maintenance beyond scheduled replacement.

MERV 11 Performance

Rated MERV 11 with approximately 85% efficiency for 3–10 micron particles to help reduce allergens like pollen and mold while maintaining system airflow and efficiency.

Compatibility - The 91-012 filter fits:

Replacement Interval

Replace every 6 months under normal operating conditions. Always refer to your unit’s Owner’s Manual for model-specific guidance.

What’s Included

Quantity: 4 filters per package.

Specifications

Note: Verify sizing and replacement procedures in your system’s Owner’s Manual.