Aprilaire 501 Replacement Filter For Aprilaire 5000 Whole-House Air, Pack Of 2 The air in your home has the potential to impact the health and wellness of you and your family. With AprilAire you have the power to use your whole-home air cleaner to remove allergy and asthma triggers from the air circulating through your HVAC system to help create a cleaner and healthier home environment during allergy season and all year long. Product Features BUY WITH CONFIDENCE This genuine AprilAire 501 replacement air filter was designed and manufactured in the USA by AprilAire ? the leader in indoor air quality solutions ? to optimize the performance of your AprilAire Electronic Air Purifier Model: 5000 CAPTURES UP TO 90% OF VIRUS-SIZE airborne particles passing through the AprilAire Electronic Air Purifier 5000's filter, including airborne particulates associated with tobacco smoke and pollution TRAPS UP TO 98% OF AIRBORNE ALLERGY AND ASTHMA TRIGGERS as the air in your home circulates through the filter, including dust, pollen, mold spores, bacteria, pet dander, and dust mites EFFICIENT HOME AND HVAC SYSTEM PROTECTION - replace your filter annually for optimal performance - up to one year of filter life saves you time and effort NOMINAL AIR FILTER SIZE of 16 x 25 x 6 inches (nominal size is an industry standard filter size system to help you easily identify the correct replacement filter and is not the actual size) Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!