Quick Answer: Costco does not run a fixed, searchable dehumidifier catalog the way Amazon does — it runs a rotating warehouse-club assortment. The one model we could confirm as a standing, online-only listing on Costco.com is the Hisense 35-Pint (HD3526, item 2425303), covering up to 3,000 sq ft with an 8.9-pint tank and Energy Star certification. Beyond that single confirmed SKU, Midea and Danby 50-pint models with built-in pumps have both appeared in 2026 member deal threads at prices ranging from $99.97 to $199.99 for the same model — a roughly 2x spread that tells you more about Costco’s treasure-hunt pricing than about the dehumidifier itself.
If you came here hoping for a stable “Costco’s best dehumidifier” answer the way you’d get one for Amazon, the honest answer is that Costco’s selection doesn’t hold still long enough for that. Here’s what we actually found, confirmed where we could and flagged where we couldn’t.
The one confirmed standing listing
| Model | Capacity | Coverage | Status at Costco |
|---|---|---|---|
| Hisense HD3526 (Item 2425303) | 35 pint / 8.9-pint tank | Up to 3,000 sq ft | Standing, online-only |
| Midea MAD50PS1BWT-C | 50 pint, built-in pump | Up to 4,500 sq ft | Rotating, in/out of stock |
| Danby DDR050BJPWDB | 50 pint, built-in pump | Not confirmed | Rotating, often out of stock |
| Hisense HD5026TLP (TopLift) | 50 pint, built-in pump | Not confirmed | Warehouse-specific sightings |
Only the Hisense HD3526 has a live, current product page on Costco.com as of this writing — the other three are documented through member deal-tracking sites and warehouse sighting reports through mid-2026, not a current Costco.com listing we could verify directly. That distinction matters: one is something you can search for and order today, the other three are “ask your local warehouse” territory.
What we found
Hisense 35-Pint Dehumidifier (HD3526)
- Energy Star certified with a 162 CFM airflow rating, 3 fan speeds, auto shut-off when the 8.9-pint tank fills, a washable removable filter, and a slide-out bucket — specs confirmed directly on Costco's own item page (2425303).
- 13.8 in. W x 9.4 in. D x 19.7 in. H, 31.1 lb, 115V with a 6 ft. cord — this is a room-size unit, not a whole-basement one; compare against our best dehumidifier for basement guide if you need more capacity.
- No built-in pump on this model — manual bucket emptying only, so pair it with our best dehumidifier with pump picks if continuous drainage matters more to you than Costco's price.
Get your dehumidifier running in two days — try Amazon Prime free for 30 days.
Midea 50-Pint with Built-In Pump (MAD50PS1BWT-C)
- Member deal-tracking threads through 2026 put this exact model anywhere from $99.97 (in-store clearance with a coupon) to $159.99 (sitewide member sale) to $199.99 (standard member price) — confirm the current price at your warehouse or Costco.com before assuming any number here still holds.
- An older MAD50PS1AWT-C version has also circulated at some warehouses; check the suffix letter on the box, since it can mark older clearance stock.
- Same capacity class as this site's overall top pick — see the full breakdown in our best dehumidifier pillar and best 50 pint dehumidifier guide.
Danby 50-Pint with Built-In Pump (DDR050BJPWDB)
- Last tracked around $99.97 in May 2026 before going out of stock — deal-tracker data this thin means treat any price you see quoted elsewhere as stale until you confirm it directly.
- Danby's own dehumidifier line carries recall history from two separate CPSC actions on older models — see our best Danby dehumidifier review for the full recall breakdown before buying new or used.
Costco dehumidifiers by the numbers
- 1 confirmed standing listing: of everything we could verify, only the Hisense HD3526 has a live, current Costco.com product page (item 2425303) — everything else is documented through member deal-tracking sites and warehouse reports, not a direct Costco.com listing we could confirm today.
- ~2x price spread, same SKU: the identical Midea MAD50PS1BWT-C has been reported at $99.97, $159.99, and $199.99 across 2026 member threads — the single clearest sign that Costco pricing on this category is promotional and regional, not fixed.
- 8.9-pint tank, 3,000 sq ft coverage: the Hisense HD3526’s confirmed specs per Costco’s own item page — a mid-size room unit, well below the 4,500 sq ft the Midea 50-pint-class units claim.
- 2016, not 2026: the year of GD Midea’s CPSC recall covering 3.4 million dehumidifiers (25-75 pint, made 2003-2013) under the Midea, Frigidaire, Crosley, Kenmore, and GE names — a different manufacturing era than the MAD-prefix units currently cycling through Costco.
Why Costco’s dehumidifier aisle looks different from Amazon’s
Warehouse clubs don’t run a standing catalog the way Amazon does — they run a rotating assortment designed to create urgency, often called the “treasure hunt” model. That’s genuinely useful if you catch a deep clearance price, but it means:
- You can’t search for it reliably. Costco.com’s own site search surfaces the Hisense HD3526 consistently; the Midea and Danby pump models mostly show up through member forums and regional warehouse reports, not a dependable online listing.
- The same item number can carry wildly different prices within months. That’s not a pricing error — it reflects member-sale windows, in-store-only clearance events, and regional overstock, all layered on the same SKU.
- Stock status is a snapshot, not a guarantee. Both the Danby and one Hisense 50-pint pump model were reported out of stock at their last tracked check — by the time you read this, availability may have changed again in either direction.
Is a Costco dehumidifier actually recalled?
Only indirectly, and not on current stock. Midea’s name carries a real 2016 CPSC recall (3.4 million units, 25-75 pint, made 2003-2013, sold under Midea, Frigidaire, Crosley, Kenmore, and GE), but that’s a different manufacturing generation from the MAD-prefix model currently cycling through Costco warehouses. Danby carries separate, more recent recall history covered in depth on our best Danby dehumidifier page — check that before buying any Danby unit secondhand. We found no CPSC recall on record for Hisense dehumidifiers. None of this means skip Costco; it means check the nameplate manufacture date against CPSC.gov if you’re ever buying a used or heavily-discounted clearance unit from any brand.
The bottom line
Costco’s dehumidifier selection isn’t a stable lineup you can research the way you’d research Amazon’s — it’s one confirmed standing listing (the Hisense HD3526, up to 3,000 sq ft) plus a rotating cast of Midea and Danby 50-pint pump models that show up, sell out, and reappear at prices that can differ by 2x on the identical SKU. If you spot a genuinely low price in a warehouse or on Costco.com, that’s worth grabbing — but don’t wait for it to come back at the same number. For a selection you can actually compare side by side today, see our best dehumidifier pillar or size your pick with our dehumidifier size guide.