Aprilaire 313 Replacement Media Air Filter Merv 13 20x20x4 for Models 1310 2310 3310 4300

Product Description

The Aprilaire 313 is a genuine replacement media air filter rated MERV 13, designed for whole-home air purification systems used by HVAC technicians and contractors across residential and light commercial applications. This filter is a direct fit for Aprilaire models 1310, 2310, 3310, and 4300 air purifiers, as well as competitive models using the 4898 Upgrade Kit. The 313 delivers high-efficiency filtration performance with a 19.4 square foot media area, giving it the surface coverage needed to handle air flows from 600 to 1200 CFM. At 600 CFM, initial resistance measures 0.09 inches water column, and at 1200 CFM it measures 0.23 inches water column, keeping system static pressure in a range that supports proper airflow and equipment health. The filter is constructed from synthetic fiber media formed into self-spacing pleats. This collapsible pleat design installs in seconds without tools and maintains consistent media separation throughout the filter life. The self-seal design reduces air bypass around the filter frame, which is one of the most common causes of degraded filtration performance in media filter systems. A MERV 13 rating means this filter captures a broad spectrum of airborne contaminants. It permanently traps over 90 percent of pollen, mold spores, and particles in the 3 to 10 micron range. It also captures over 90 percent of respirable dust and pet dander in the 1 to 3 micron range, and up to 75 percent of bacteria-sized particles in the 0.3 to 1 micron range. These performance levels make the 313 suitable for homes with allergy sufferers, asthma patients, or pets. Nominal dimensions are 20 inches high by 20 inches wide by 4 inches deep. Actual dimensions are 19.58 inches high by 21.38 inches wide by 4 inches deep. Aprilaire recommends replacing this filter on a 12-month schedule under normal operating conditions. Using genuine Aprilaire replacement media ensures compatibility and maintains the rated efficiency of the air purification system.

• MERV 13 rated synthetic fiber media captures bacteria, mold spores, pet dander, pollen, and dust mites
• Self-seal frame design minimizes air bypass and maintains consistent filtration efficiency throughout the filter life
• Self-spacing pleated media installs in seconds and fits Aprilaire models 1310, 2310, 3310, and 4300

Product Highlights

The Aprilaire 313 is a MERV 13 genuine replacement filter built for high-airflow whole-home air purifiers, delivering broad-spectrum particle capture with a low-resistance pleat design and a simple annual replacement schedule.

Product Information

Standard Information

• Brand: APRILAIRE
• Manufacturer Part Number: 313

Technical Specifications

• MERV Rating: 13
• Media Area: 19.4 square feet
• Air Flow Capacity: 600 to 1200 CFM
• Initial Resistance at 600 CFM: 0.09 inches water column
• Initial Resistance at 1200 CFM: 0.23 inches water column
• Nominal Dimensions: 20 inches H x 20 inches W x 4 inches D
• Actual Dimensions: 19.58 inches H x 21.38 inches W x 4 inches D
• Filter Media Material: Synthetic Fiber
• Recommended Replacement Schedule: 12 Months
• Compatible Models: Aprilaire 1310, 2310, 3310, 4300, and competitive models using 4898 Upgrade Kit
• Contaminants Removed: Airborne Particles, Airborne Allergens, Asthma Triggers, Bacteria, Dust, Dust Mites, Mold Spores, Pet Dander, Pollen