Ninja Double Stack XL 2-Drawer 9.5L Air Fryer Grey SL400UK
Ninja Double Stack XL 2-Drawer 9.5L Air Fryer Grey SL400UK
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Ninja SL400UK Double Stack XL 2-Drawer 9.5L Air Fryer Grey
Wish you could enjoy the benefits of a double air fryer without sacrificing valuable worktop space? Meet theNinja Double Stack XL Air Fryer SL400UK, a game-changing kitchen appliance that’s designed to save space while delivering maximum capacity and performance.
This innovative Ninja stacker air fryer features two vertically stacked drawers, making it slimmer than traditional side-by-side models, while still offering all the benefits of a Ninja double stacker air fryer. Whether you’re preparing meals for the family or hosting a dinner party, this Ninja air fryer SL400Uk is your ultimate cooking companion.
Compact Design, Big Capacity
With a height of 38.5cm, the Ninja SL400 double stack fits easily under kitchen cabinets, ensuring your countertops stay clutter-free. Despite its compact design, it boasts a generous 9.5L capacity. Each drawer can hold a 1.4kg roast chicken, making it ideal for feeding up to 8 people – perfect for large families or entertaining guests.
Double Stack Air Fry Technology
Thanks to the Ninja double stack SL400 technology, you can cook on 4 levels simultaneously. The included Stacked Meal racks double your cooking surface, allowing for even crisping across all layers. Each drawer features individual heat sources and rear fans for 360° air circulation, ensuring consistently crispy and evenly cooked results. Whether it’s chicken thighs and asparagus, salmon and potatoes, or a party platter, this air fryer Ninja handles it all with ease.
Independently Controlled Drawers
Mix and match 6 cooking functions, times, and temperatures across two drawers, and let the SYNC feature ensure your food finishes cooking simultaneously. Whether you’re preparing mains and sides, a variety of party snacks, or meals tailored to different dietary needs, this Ninja double stack XL air fryer offers unmatched versatility.
For smaller portions, simply use one drawer, making the Ninja Double Stack XL Air Fryer suitable for any cooking occasion. Each drawer also includes a crisper plate to deliver perfect results every time.
Cook Faster and Save Energy
Cooking up to 55% faster than traditional fan ovens***, the Ninja SL400 double stack XL air fryer gets your meals on the table in record time. Plus, it uses up to 55% less energy†, making it an eco-friendly choice that reduces your energy bills.
6 Cooking Functions
This Ninja air fryer is more than just an air fryer. It offers six versatile cooking functions, including:
- Air Fry: Enjoy healthier meals with up to 75% less fat than traditional frying methods****.
- Roast, Bake, Reheat, Dehydrate, and Max Crisp: From crispy chips to succulent roasts, this appliance has you covered.
User-Friendly and Easy to Clean
The side-positioned control panel makes operation simple, while the non-stick drawers, crisper plates, and racks are dishwasher-safe for effortless cleaning. For added convenience, the built-in timer ensures cooking stops automatically when your food is ready.
The Ninja SL400UK air fryer also includes a chef-created recipe guide to inspire your culinary adventures and help you get the most out of your appliance.
Peace of Mind Guarantee
When you purchase the Ninja Double Stack XL 2-Drawer 9.5L Air Fryer, you’ll enjoy a free 2-year guarantee upon registration with Ninja (UK & ROI only).
Upgrade your cooking game today with the Ninja Double Stack XL Air Fryer SL400UK – the perfect blend of space-saving design, large capacity, and exceptional performance.
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Shipping & Delivery
Shipping & Delivery
We offer free UK delivery on every order, with tracking provided once your order is on its way. Delivery times vary depending on the product and your location. For larger items such as garden sheds, our team will contact you to arrange a convenient delivery date.
Tonava Quality Promise
Tonava Quality Promise
Every product we sell is brand-new and supplied with the manufacturer's warranty. We work with trusted brands across home, kitchen, laundry and garden to bring you reliable products you can buy with complete confidence.
Warranty & Support
Warranty & Support
All products are covered by the manufacturer's warranty. Need help before or after your purchase? Our support team is happy to assist with product questions, order updates and returns — just email support@tonava.com and we'll get back to you.
FAQs
FAQs
What does Tonava sell?
Tonava offers quality home, kitchen, laundry and garden products — including air fryers, microwaves, blenders and coffee machines, washing machines, washer dryers and tumble dryers, TVs and commercial displays, garden sheds and outdoor storage. Every product is brand-new and sourced from trusted brands.
Where do you deliver?
We deliver across the United Kingdom.
How much does delivery cost?
Delivery is free on every order. You'll receive tracking once your order is on its way. For larger items such as sheds, we'll contact you to arrange a suitable delivery date.
Are your products brand-new?
Yes. Every item is brand-new and supplied with the manufacturer's warranty.
Can I return an item?
Yes. We offer 30-day returns. To start a return, email us at support@tonava.com with your order number and reason for return, and we'll guide you through the process. Please see our Refund Policy for full details.
What if my item arrives damaged?
Please contact us as soon as possible at support@tonava.com with your order number, photos of the item and packaging, and a short description of the issue, and we'll put it right.
Can I change or cancel my order?
Please email support@tonava.com as soon as possible. We'll do our best to help, though we can't guarantee changes once an order has been dispatched.
I entered the wrong address — what now?
Email us immediately at support@tonava.com. If your order hasn't been dispatched yet, we'll do our best to update it.
What payment methods do you accept?
We accept the secure payment methods shown at checkout, including major debit and credit cards, PayPal, Apple Pay and Google Pay.
Is checkout secure?
Yes. Tonava uses an encrypted, secure checkout to protect your payment and personal information.
How can I contact Tonava?
Email: support@tonava.com
Address: Unit 4b, Ferrybridge Business Park, Fishergate, Ferrybridge, Knottingley, West Yorkshire, WF11 8NA

Why customers choose Tonava
Fast, tracked delivery on every order.
Genuine products backed by the manufacturer's warranty.
Changed your mind? Return within 30 days of delivery.
Questions before or after you buy? Email support@tonava.com.