Right now there are 388 deals from Amazon Resale, formerly Amazon Warehouse Deals, in Automotive › Replacement Parts › Filters › Air Filters & Accessories › Passenger Compartment Air Filters. These are inspected returns and open-box items that Amazon sells and ships itself. WarehouseHunter puts each one next to its current new price, so you can see what you save at a glance.

Brands with the most offers here: PHILTOP, Wix, KAX, A-Premium, BDFHYK, Bosch, Febreze, Purolator. Every item is a one-off, so the stock moves all day and new deals keep arriving.