Suggested Retail: $49.10. AprilAire 401 Replacement Furnace Filter for AprilAire 2400 Space-Gard Whole-House Air Purifiers MERV 10 Air Filter Pack of 1 Single Pack. The AprilAire 401 Healthy Air 10 Air Filter enhances air quality by removing airborne particles such as dust, pollen, mold spores, and pet dander. It's designed to make the air in your home fresh and healthy, offering protection for your family and your HVAC system. The filter has a life of up to 12 months, saving you time on replacements compared to traditional filters. This filter has a nominal size of 16 x 25 x 6 inches and is compatible with AprilAire and Space-Gard Air Cleaner Model 2400. 16 x 25 x 6 IN. DIMENSIONS ARE ESTIMATED. Brand: AprilAire. Model: 401. Num: ZBevzTrZ7NFa9V5gz90x6N. Lot Sticker: OH001.07-00000007-11. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.