What We Found in an Amazon Mystery Box: Rheem & More — April 29, 2026

Seventy-nine items. $889.65 in estimated retail value. Not a bad Tuesday in Hot Springs, honestly. This one came in as a closed Amazon returns box, which means we genuinely didn't know what was inside until we started digging — and most of it turned out to be pretty everyday stuff. Bin labels, a single pair of reading glasses, some cleaning odds and ends. Totally normal pallet filler. But then we hit the bottom half of the box and things got interesting.

The Star of This Box: A Rheem Natural Gas Water Heater Valve Worth $229.95

Yeah. A Rheem WV8840C1406 OEM Upgraded Natural Gas Valve. Retail on this thing is nearly $230, and it's the kind of item that ends up in an Amazon return box because someone ordered the wrong part, or their plumber sourced it elsewhere, or who knows. That's the beauty of Amazon mystery boxes — the returns come from everywhere. If you've got a Rheem water heater that's giving you trouble, this is the find of the week.

Beyond that big-ticket surprise, we had a few genuinely useful smaller pulls. The Mix Aid Silicone Liners for KitchenAid Tilt-Head 5 Qt Mixers — a 3-liner and 3-lid set — came in at $24.99 retail and those go fast when they hit the bins. Bakers, you know what to do. We also found a tub of TICARVE Dust Cleaning Gel (the satisfying squishy kind that gets into keyboard crevices) and a big 11.5 oz bottle of Dippity-do Girls With Curls Gelée for the curly-hair folks in the crowd.

Honestly? The bulk of this box was mid. Lots of labeling product, one lonesome pair of glasses. But that Rheem valve alone covered a serious chunk of the box's value, and the KitchenAid liners are a legit score. Come dig through the bins — this stuff hits the floor fast.