Ninja AD350CO 10-Qt DualZone XL Review — Is the Costco Edition Worth It?
www.DualAirFryers.com
Published on | Updated August 7, 2026
Quick Verdict
The Ninja AD350CO is the Costco-exclusive version of the DZ401 — same 10-Qt dual basket, same Smart Finish, same 6-in-1 functions. You get two independent 5-Qt zones that cook different foods at different temps simultaneously. Often $20-40 cheaper than the Amazon DZ401 with Costco's easy return policy. If you have a Costco membership, this is the best way to get the top Ninja DualZone. Otherwise, the DZ401 on Amazon is the same thing.
Key Features
- 2 independent XL baskets (5 Qt each) — cook two different foods at different temperatures simultaneously
- Smart Finish — syncs both baskets to finish cooking at the same time
- Match Cook — copies settings across both baskets for full 10-Qt capacity on one food
- 6-in-1 functions: Air Fry, Air Broil, Roast, Bake, Reheat, Dehydrate
- Independent cyclonic fans — each zone has its own fan and rapid heater for even results
- Up to 450°F — wide range from 105°F (dehydrate) to 450°F (extra crispy)
- 75% less fat — vs traditional deep frying methods
- 30% faster than conventional oven — rapid air circulation technology
- Dishwasher-safe baskets — nonstick crisper plates, easy cleanup
Who Should Buy the Ninja AD350CO
Best for: Costco members looking for the best deal on a large dual basket. Families of 4+ who cook multiple foods nightly. Meal preppers who batch cook proteins and sides simultaneously. Anyone who wants 10-Qt capacity with the easiest possible return policy.
Skip it if: You don't have a Costco membership (just get the DZ401 on Amazon). You only cook for 1-2 people (overkill — get the DZ090 6-Qt). You have limited counter space (17 inches wide).
AD350CO vs DZ401 vs DZ201 — Which Ninja DualZone?
| Feature | AD350CO (Costco) | DZ401 (Amazon) | DZ201 (8 Qt) |
|---|---|---|---|
| Total Capacity | 10 Qt (2x5) | 10 Qt (2x5) | 8 Qt (2x4) |
| Functions | 6-in-1 | 6-in-1 | 6-in-1 |
| Smart Finish | ✔ | ✔ | ✔ |
| IQ Boost | ✘ | ✔ | ✘ |
| Return Policy | Costco (generous) | Amazon 30-day | Amazon 30-day |
| Feeds | 4-6 people | 4-6 people | 2-4 people |
| Typical Price | $160-$180 | $180-$230 | $160-$200 |
Specifications
- Power: 1800W
- Temperature range: 105°F to 450°F
- Capacity: 10 quarts total (two 5-Qt baskets)
- Functions: Air Fry, Air Broil, Roast, Bake, Reheat, Dehydrate
- Dimensions: ~17" D x 14.7" W x 12.7" H
- Weight: ~18.5 lbs
- Baskets: Nonstick, dishwasher-safe with crisper plates
- Color: Dark Grey
Pros and Cons
- Same quality as DZ401, often cheaper
- 10-Qt total (largest DualZone)
- Costco return policy (no hassle)
- Smart Finish + Match Cook
- 6 cooking functions up to 450°F
- 30% faster than conventional oven
- Dishwasher-safe baskets
- Large footprint (17" wide)
- Heavy at 18.5 lbs
- No IQ Boost (DZ401 has it)
- No window to see food
- Requires Costco membership
- Less available online than DZ401
Frequently Asked Questions
What is the difference between Ninja AD350CO and DZ401?
They are essentially the same 10-Qt DualZone XL. The AD350CO is the Costco model number with identical specs: two 5-Qt baskets, 6-in-1 functions, Smart Finish, 1800W. The DZ401 may include IQ Boost depending on production run. Functionally, they perform the same.
Is the AD350CO a good deal at Costco?
Yes. Costco typically sells it for $20-40 less than the DZ401 on Amazon. Combined with Costco's generous return policy (no time limit on most items), it's a lower-risk purchase. If it goes on sale during holiday events, it's even better value.
Can it cook two different foods at once?
Yes. Each basket has its own cyclonic fan, heater, and temperature control. Air fry wings at 400°F in one basket while roasting vegetables at 375°F in the other. Smart Finish ensures both are done at the same time.
How big is it? Will it fit on my counter?
It measures roughly 17 x 14.7 x 12.7 inches and weighs 18.5 lbs. You also need clearance above for the baskets to slide out. It's a large appliance — measure your counter space first. If space is tight, the DZ090 (6 Qt) is much more compact.
Is it dishwasher-safe?
Yes. Both baskets and crisper plates are dishwasher-safe with nonstick coating. The main unit just needs a quick wipe. One of the easiest large air fryers to clean.
Check Price on Amazon →
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