Right now there are 228 deals from Amazon Resale, formerly Amazon Warehouse Deals, in Tools & Home Improvement › Plumbing › Water Heaters & Parts. 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: Rheem, PILOT, SharkBite, CAMPLUX, Element, Eastman, GE, VEVOR. Every item is a one-off, so the stock moves all day and new deals keep arriving.