Big Capacity. Small Footprint. Smarter Air Frying.

Wish you could fit a double air fryer into a smaller kitchen? Meet the Ninja Double Stack XL 2-Drawer Air Fryer (SL400UK) — a powerful, space-saving air fryer with two vertically stacked drawers that delivers family-sized capacity without taking over your worktop.

Designed for large families, entertaining, and busy households, this innovative air fryer lets you cook up to four layers of food at once, with everything finishing together — even in compact kitchens.

Key Features

• 2 vertically stacked drawers for a slimmer footprint

• Large 9.5L total capacity (2 × 4.75L drawers)

• Cook on 4 levels at once with stacked meal racks

• Perfect for up to 8 people

• 6 cooking functions for total versatility

• Independent drawer control with SYNC finish function

• Non-stick, dishwasher-safe drawers and crisper plates

• Cooks using up to 55% less energy than an oven

• 2-Year Ninja Guarantee (UK & ROI, registration required)

Space-Saving Double Stack Design

This innovative air fryer is 30% slimmer than traditional side-by-side double air fryers:

• Vertical drawer design takes up less counter space

• Only 38.5cm tall, designed to fit neatly under cabinets

• Ideal for smaller kitchens without sacrificing capacity

Big performance, compact footprint.

Double Stack Air Fry Technology – Cook 4 Levels at Once

Cook more food evenly and efficiently:

• Includes 2 stacked meal racks for multi-level cooking

• Each drawer has its own heat source and rear fan

• 360° air circulation ensures even cooking and crisping

Perfect for cooking mains and sides together — chicken with vegetables, burgers with fries, or party food for guests.

Two Independently Controlled Drawers

Enjoy total flexibility with dual-zone cooking:

• Use different functions, temperatures and times in each drawer

• SYNC function ensures both drawers finish together

• Ideal for different tastes, dietary needs or meal prep

Cooking for one? Use just one drawer for smaller portions.

6 Versatile Cooking Functions

More than just an air fryer:

• Air Fry – little to no oil, up to 75% less fat

• Max Crisp – cook from frozen to extra crispy

• Roast – meats and vegetables

• Bake – cakes, pastries and desserts

• Dehydrate – fruit, herbs and snacks

• Reheat – revive leftovers without drying out

Cook up to 55% faster than fan ovens while using less energy.

Easy to Use & Easy to Clean

Designed for everyday convenience:

• Side-mounted control panel for easy access

• Automatic shut-off when timers finish

• Non-stick drawers, crisper plates and racks are dishwasher safe

• Includes chef-created recipe guide and cooking charts

Less mess, less effort, more great food.

Specifications

• Model: SL400UK

• Product Type: 2-Drawer Air Fryer

• Total Capacity: 9.5 L (2 × 4.75 L)

• Functions: Air Fry, Max Crisp, Roast, Bake, Dehydrate, Reheat

• Power: 2470 W

• Colour: Grey

• Controls: Buttons / Dial

• Display: LCD

• Weight: 10.3 kg

• Dimensions (H × W × D): 38.5 × 28 × 47 cm

• Guarantee: 2 Years (UK & ROI, registration required)

What’s in the Box

• Ninja Double Stack XL Air Fryer (SL400UK)

• 2 × 4.75L Non-Stick Drawers

• 2 × Non-Stick Crisper Plates

• 2 × Stainless Steel Stacked Meal Racks

• Recipe Guide

Why Choose the Ninja Double Stack XL Air Fryer?

• Double-drawer capacity in a slimmer, vertical design

• Cook up to four layers evenly at the same time

• Ideal for large families and entertaining

• Energy-efficient and faster than oven cooking

• Flexible dual-zone cooking with SYNC finish

• Trusted Ninja performance and build quality

The Ninja Double Stack XL 2-Drawer Air Fryer SL400UK is the perfect solution for households that want maximum capacity, minimal clutter, and consistently great results — all in one smart, space-saving appliance.