16X25X1 Pollen And Dust Control Pleated Replacement Ac/Furnace Air Filter,, 4 Product Details THE HIGHER THE MERV RATING, THE MORE PARTICLES TRAPPED ? Merv 8 rated AC/Furnace filter. Tested and rated according to ASHRAE Standard 52.2 CREATE CLEANER INDOOR AIR AT YOUR HOME OR WORK - Captures up to 76% of common airborne contaminants such as dust, lint, dust mite debris, pollen, pet dander, smoke, bacteria, and mold spores. BETTER PERFORMANCE ? This Enviroflow air filter is 20 times more efficient than ordinary fiberglass filters EASY INSTALL ? Simply remove your old filter, unpack the new one, insert the filter so the arrow on the side of the frame matches air flow direction, and lastly record the date to keep track of when to change BUY WITH CONFIDENCE ? Every Enviroflow air filter is designed and manufactured in the United States and built to last up to 90 days under normal operating conditions. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.