310 Replacement Air Filter 20x20x4 MERV 11 Compatible with Air Purifiers Model 1310 2310 3310 4300 HVAC AC Furnace Filter 2Packs

Keep your HVAC and air purifier systems running efficiently with the 310 replacement air filter, designed for versatile compatibility and long-lasting performance.

This filter supports dual system use:

Air Purifier Compatibility: When used with the included frame, fits models 313, 1310, 2310, 3310, and 4300. Actual size: 16.2–19.7" (adjustable) H x 20" W x 3.78" D.

Standard HVAC Use: Nominal size: 20" x 20" x 4". Actual size: 16.2–19.7" (adjustable) H x 20" W x 3.8" D.

Each 2-pack value set delivers excellent durability and cost savings. Constructed with premium MERV 13 pleated media reinforced by aluminum mesh, this filter captures fine particles such as dust, pollen, and pet dander while maintaining steady airflow for cleaner, healthier indoor air.

Installation is quick and tool-free—simply replace in 1–2 minutes following the included step-by-step guide. Built with higher-density filtration media, it provides greater dust-holding capacity for extended service life and consistent HVAC performance. Under normal use, the filter can last up to one year.

Key Features:

Dual Compatibility: Works with both air purifier and standard HVAC systems.

2-Pack Value: Long-lasting use and great cost efficiency.

High-Performance MERV 11 Filtration: Traps fine particles while maintaining airflow.

Easy Installation: No tools required; replacement takes only minutes.

Durable & Reliable: Reinforced construction for extended lifespan and system protection.

Warm Tips: For optimal performance, replace the filter every 6 months based on usage and water quality. This replacement product is not an OEM part. All brand names and trademarks belong to their respective owners, and any mention of these names or model numbers is for compatibility reference only.