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Ninja Double Stack XL 9.5L Air Fryer SL400UK — 2-Drawer Vertical Air Fryer, Double Stack Technology, 6 Cooking Functions, Cooks 4 Foods at Once
Key Product Features
- Double Stack Air Fry Technology: Cook on 4 levels at the same time with 2 included stacked racks — only Ninja crisps food evenly on every layer.
- 6 cooking functions: Air Fry, Max Crisp, Roast, Bake, Dehydrate and Reheat — mix and match a different program in each drawer.
- Huge 9.5L capacity: Two 4.75L non-stick drawers feed up to 8 people and fit a 1.4kg roast chicken in each drawer.
- SYNC and MATCH: SYNC finishes both drawers at the same time; MATCH cooks the same settings across both for larger quantities.
- Up to 55% faster than fan ovens***: Family meals on the table in minutes, using less energy than a conventional oven.
- Space-saving vertical design: 30% slimmer* than side-by-side 2-drawer air fryers and just 38.5cm tall — fits under cabinets.
- Easy to clean: Non-stick, dishwasher-safe drawers and crisper plates wipe clean in seconds.
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Ninja Double Stack XL 9.5L Air Fryer SL400UK
- Double Stack Air Fry Technology — cook 4 foods on 4 levels at once
- 6 functions: Air Fry, Max Crisp, Roast, Bake, Dehydrate and Reheat
- Huge 9.5L capacity (2 x 4.75L drawers) — feeds up to 8 people
- Up to 55% faster than fan ovens*** and 30% slimmer* — fits under cabinets
Only Ninja has Double Stack Air Fry Technology. Cook on 4 levels at the same time, layering your foods with the 2 included stacked racks. Food is evenly cooked and crisped on every level — so you can cook chicken tenders in the same drawer as fries, salmon alongside asparagus, or the ultimate combo of party foods. Perfect for mix-and-match meals, buffet food and feeding a crowd.
Two vertically stacked drawers give you four cooking levels without taking over your worktop — all the capacity of a big oven, in a fraction of the space.
Mix. Match. Stack. Use a different program, temperature and cook time in each drawer, with 6 versatile functions: Air Fry, Max Crisp, Roast, Bake, Dehydrate and Reheat. The SYNC function makes sure both drawers finish cooking at the same time, while MATCH uses the same settings across both drawers to cook larger quantities of one food.
The large 9.5L total capacity feeds up to 8 people, fitting a 1.4kg roast chicken in each 4.75L drawer. Cooking up to 55% faster than fan ovens***, you can have family favourites on the table in minutes — while using less energy than a conventional oven**.
With two cooking drawers stacked on top of each other, this compact double air fryer is 30% slimmer* than traditional side-by-side models — without compromising on capacity. At just 38.5cm tall it is designed to fit under your cabinets, making it perfect for small kitchens, large families and anyone who loves entertaining.
Everything you need to get started: the Ninja Double Stack XL main unit (2470W), 2 x 4.75L non-stick drawers, 2 crisper plates and 2 stacked meal racks. Backed by a 2-year guarantee for complete peace of mind.
Designed for fast, healthy, family-size cooking with little to no oil. *vs AF400. **Based on recommended cook time for sausages, air fry function versus conventional ovens. ***Tested against fish fingers and sausages.
| Brand | Ninja |
| Model | SL400UK |
| Product Type | Double Stack 2-Drawer Vertical Air Fryer |
| Total Capacity | 9.5L (2 x 4.75L drawers) |
| Power | 2470W |
| Cooking Functions | Air Fry, Max Crisp, Roast, Bake, Dehydrate, Reheat (6) |
| Technology | Double Stack Air Fry (4 levels), SYNC and MATCH |
| Serves | Up to 8 people |
| Height | 38.5 cm — fits under cabinets |
| Colour | Black |
| In the Box | Main unit, 2 non-stick drawers, 2 crisper plates, 2 stacked racks |
| Warranty | 2 years manufacturer guarantee |
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