Aprilaire AA 310 - 20x20x4 MERV 11

This AprilAire 310 replacement filter is compatible with the following AprilAire Air Purifier models:

Aprilaire

1310, 2310, 3310, 4300

York / Source1

S1-FM310

Please verify your unit's measurements before ordering.

Designed with MERV 11 media to help reduce airborne particles circulating through your home — helping you vacuum and dust less often.

• Helps capture dust, pollen, mold spores, bacteria, and pet dander
• Patented Self-Seal Technology minimizes air bypassing the filter
• Maintains healthy airflow throughout your HVAC system
• Proud partner of the American Lung Association

Designed for the AprilAire Interlock Rail System — installation takes seconds with no tools, no assembly, and no cardboard or metal reinforcements needed.

• Simple 3-step process — unpack, slide in, close the door
• Engineered for a precise, secure fit every time

This AprilAire 310 replacement filter is designed and manufactured to optimize the performance of your AprilAire Air Purifier.

• Designed and manufactured in the USA by AprilAire
• Engineered to optimize performance across all compatible AprilAire Air Purifier models