Filtrete 15.88 x 24.56 x 4.31 in Air Filter – MERV 11, MPR 1000, 4-Pack for Lennox & Honeywell

Overview

Filtrete 15.88 x 24.56 x 4.31 in air filter, MPR 1000 and MERV 11, is designed to work with Lennox and Honeywell media air cleaners. This 4-pack is built to fit the exact dimensions (actual size, not nominal) and is certified asthma and allergy-friendly, offering a practical filtration solution for typical home environments. The exclusive Filtrete 3-in-1 technology pulls in and traps a broad range of particles while still allowing cleaner air to flow through the system. While results may vary by environment, you may notice a reduction in visible dust and particle presence in everyday spaces.

Use this filter in your furnace, air conditioner, or HVAC system to maintain filtration performance across the year. The 4.31 inch thickness is part of the design that supports consistent airflow and filtration across cycles, and the Filtrete brand is recognized as a trusted option in North America for HVAC filters.

Three in one technology and particle capture

• 1000 MPR and MERV 11 rated filtration for broad particle capture
• Cap­tures microparticles such as pet dander, smoke, and smog while maintaining airflow
• Traps large particles like dust, pollen, lint, and mold spores in your household air

Fit, maintenance, and smart reminders

• Exact size is 15.88 x 24.56 x 4.31 inches; actual dimensions differ from nominal size
• Designed to fit Lennox and Honeywell media air cleaners
• Replace at least once every 12 months for ongoing performance
• Filtrete Smart App can set 90, 180, or 365 day replacement reminders

Real-life use scenarios include homes with pets, city living with smoke or smog, or seasons with high pollen. This filter option is intended to be part of a routine that helps keep indoor airflow steady and filters ready for everyday life. It does not guarantee specific outcomes, but it offers a clearly defined filtration approach and maintenance plan that many households find convenient.