Right now there are 36,256 deals from Amazon Resale, formerly Amazon Warehouse Deals, in Industrial & Scientific. 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: VEVOR, Amazon Basics, KLEIN TOOLS, 3M, Hillman, HEAD, uxcell, Hard-to-Find Fastener. Every item is a one-off, so the stock moves all day and new deals keep arriving.