• Ninja DoubleStack XXXL 9.5L 2 Drawer Air Fryer SL400

    $456
    $143.99 (24%) off RRP of $600
    $143.99 (24%) off RRP of $600

    Ninja DoubleStack XXXL 9.5L 2 Drawer Air Fryer SL400

    $456
    $143.99 (24%) off RRP of $600
    $143.99 (24%) off RRP of $600
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    • Overview
    • Specifications & manuals
    • Reviews
    • Legendary service
    • Delivery, services & returns
    • Questions & answers

    Overview

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    The Ninja DoubleStack XXXL 9.5L 2 Drawer Air Fryer SL400 is a game-changer in kitchen convenience, combining space-saving innovation with powerful performance. Featuring Doublestack Air Frying Technology, this air fryer lets you cook up to four foods simultaneously, ensuring crispy, even results across multiple layers. Its stacked design not only maximizes cooking capacity but also reduces counter space usage, fitting neatly under standard cabinets. With Smart Finish & Match Cook, you can prepare different foods with different settings and have them finish cooking at the same time, or sync settings across both drawers for large-batch cooking. The XXXL 9.5L capacity is perfect for feeding up to eight people, accommodating two whole chickens with ease. Versatility is key with six cooking functions, allowing you to air fry, max crisp, roast, bake, reheat, and dehydrate. Achieve healthier meals with up to 75% less fat than traditional frying methods, while enjoying faster cooking times that beat other air fryers—ideal for busy family dinners. Cleanup is a breeze, thanks to easy-to-clean drawers and dishwasher-safe crisper plates.
    DoubleStack Technology

    Doublestac Air Frying Technology features two removable stacked meal racks per drawer, allowing you to cook four foods simultaneously. Superheated air circulates evenly around each item, delivering consistent crisping and perfectly cooked results in both baskets without extra oil.

    Space Saving Design

    The space-saving slim design is 30% slimmer than traditional two-drawer air fryers, maximizing counter space while doubling cooking capacity. It fits easily under kitchen cabinets, offering a compact yet powerful solution for preparing multiple dishes without sacrificing efficiency or performance.

    6-in-1 Versatility

    With 6-in-1 cooking functions, you can Air Fry, Max Crisp, Roast, Bake, Reheat, and Dehydrate, giving you endless meal possibilities. From crispy snacks to full-course meals, this versatile air fryer ensures perfect results for every craving with minimal effort.

    Smart Finish & Match Cook

    Smart Finish lets you cook two different foods with separate settings and have them finish simultaneously. Match Cook syncs settings across both zones for full 7.6L capacity meals, ensuring convenience, precision, and perfectly timed dishes for effortless family cooking.

    Specifications & manuals

    key Specifications
    Brand
    Ninja
    Finish Colour
    Black
    Finish Colour Description
    Black with Silver Accents.
    Height (mm)
    385 mm
    Width (mm)
    286 mm
    Depth (mm)
    488 mm
    Model Number
    SL400
    Food Capacity
    9.5 kg
    Weight (kg)
    10.2 kg
    Accessories included

    DoubleStack XXXL Air Fryer
    (2) 4.75kg drawers
    (2) Nonstick Crisper Plates
    (2) Stacked Meal Racks
    20 Recipes, Additional Meal Options & Cooking Charts

    warranty
    Manufacturer Warranty
    2 Years
    Use
    Not intended or designed for commercial use.
    additional Dimensions
    Package Dimensions (H x W x D)
    419 x 314 x 511
    other Features
    Features

    DoubleStackAir Frying Technology: Two removable stacked meal racks allow cooking on two levels per drawer, letting you prepare four different foods simultaneously while ensuring even crisping with superheated air.

    Space-Saving Stacked Design: At 30% slimmer than traditional two-drawer air fryers, this unit maximises cooking capacity while taking up nearly half the counter space and still fitting under standard cabinets.

    Smart Finish& Match Cook: Smart Finish lets you cook different foods in each drawer while ensuring they finish at the same time, while Match Cook easily duplicates settings across both drawers for large meals.

    XXXL 9.5L Family-Sized Capacity: With the ability to cook two whole 2.3kg chickens at once, this air fryer is perfect for feeding up to eight people, making it ideal for family dinners and meal prep.

    6-in-1 Cooking Functions: Versatile cooking programs include Air Fry, Max Crisp, Roast, Bake, Reheat, and Dehydrate, offering multiple ways to prepare meals with one appliance.

    Healthier Cooking with Less Fat: Enjoy crispy, golden results with up to 75% less fat than traditional deep-frying methods, making it a healthier option for favorite fried foods.

    Faster Cooking for Quick Meals: Prepare two meals faster than any other air fryer, reducing wait times and helping you get dinner on the table in record time.

    Easy to Clean: Both drawers and the crisper plates are dishwasher-safe, ensuring hassle-free cleanup after cooking.

    Dual Independent Cooking Zones: Each drawer operates independently, allowing you to cook different foods at different temperatures and settings simultaneously without flavour crossover.

    Even Crisp Technology: Ensures all-around crisping by circulating superheated air evenly, delivering restaurant-quality crunch on fries, chicken, and other favourites.

    electrical Connection
    Type of connection
    10A plug & lead
    Connected load
    2.27 kW
    Maximum current rating
    9.3 A
    country of Origin
    Origin
    China

    Reviews

    Rating snapshot

    5
    750
    4
    110
    3
    68
    2
    41
    1
    75

    Average customer rating

    Overall
    4.4

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    What customers say
    Generated by BazaarVoice HarmonyAI using customers reviews

    The air fryer is a versatile kitchen appliance that allows users to cook multiple dishes at once. Many reviewers praised its large capacity and compact design, as well as its ability to sync cooking times for different foods. The appliance is easy to use and clean, and produces delicious, crispy results. However, some users reported issues with uneven cooking, where food at the front cooked faster than food at the back. A few also noted that the air fryer took longer to cook compared to other models. Overall, the air fryer offers great functionality and convenience, though some users experienced minor performance issues.

    Pros
    Cons
    1-3 of 1044 reviews
    Incs2025-12-07
    Avoid at all costs. Get the dual not the stack
    I absolutely loved my Ninja Dual Air fryer but after having it a number of years I decided to change it for the Ninja Double Stack. I can’t explain how disappointed I am. The Double stack is not a patch on the dual. The rear cooling in the stack just doesn’t work. Chips take nearly twice as long as previous and cool uneven. Sausages also seem to take twice as long. I also cooked a chicken in it a because of the rear cooking the baskets have holes in the back. All the chicken fat ran out of them into the air fry. You also can’t use the inserts within the basket as it cooks from the rear. I would advise anyone to avoid this at all costs.
    Kancelskis2025-12-06
    Two Stack Air Fry - why did I wait so long?!
    [This review was collected as part of a promotion.] I held out on buying an air fryer, thinking its popularity would soon be taken over by something else. I also have a small kitchen with little surface area which made me resist. However this purchase has been worth every penny. The size is perfect and it looks stylish! I use it most days, for a quick lunch and then a busy household dinner. It cleans so easily and I’m really looking forward to a more efficient Christmas as a result.
    San glez2025-12-03
    Short cable. Nice finish.
    Short cable. Every time I need to use it I need to move it closer to the socket as I think the cable is short. When cooking the vegetables I have to put less time than the recommended one. That’s not too hard. When cooking for meals if Two meals are in the same basket ( veggies at the bottom part and proteins on the rack) it is not good as they have different cooking times. It looks nice and has nice finish. If cooking two separate meals in different drawers is ok. My review may improve in few months as I may need to get used to it.

    Legendary service

    The Appliances Online Net Promoter Score (NPS) is based on feedback from 89,897 people, collected between August 2024 to August 2025. Learn more about the Net Promoter Score (NPS).
    Excellent work!
    Joseph, Edensor Park, NSW
    Delivery people are excellent
    Marilyn, Mackenzie, QLD
    Prompt delivery, great prices and constant communication
    Richard, Croydon, VIC

    Delivery, services & returns

    Appliances Online is all about legendary service. We offer free next business day delivery, free connection, free removal and free recycling, and we even offer Saturday delivery and, in some locations, a Premium Delivery option that allows you to choose your own 2-hour delivery window.

    Questions & answers

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