













At a glance
- Width: 400mm
- Water: Hot & cold included as standard
- Setup: Fully built, self-contained, no mains plumbing required
- Power: separate mains connections for the pump and heating component; tap/heater requires a suitable 3kW supply
- Lead time: 7–10 days
- Delivery: Kerbside pallet; two people recommended to receive and check the unit
- Best for: Small salons, beauty rooms, clinics, studios and compact workspaces
400mm Vanity Unit with Basin – Compact No-Plumbing Sink with Hot & Cold Water
Looking for a 400mm vanity unit with basin where mains plumbing is not practical? This compact, self-contained no-plumbing sink provides hot and cold running water in a space-saving 400mm unit, making it ideal for salons, beauty rooms, clinics, studios and other small workspaces.
Hot and cold water come as standard — no upgrades required to get started. If you’d like to personalise your setup, our optional upgraded system lets you choose any compatible mixer tap in the colour and style of your choice (just select an upgraded tap to switch systems).
Prefer a hands-free tap? Choose the Sensor Tap System in the system options on this page – no separate add-on needed.
What’s Included? Everything You Need
Fully built and self-contained – no assembly or plumbing required
Hot & cold water system powered by our automatic water pump
Uses separate mains connections for the pump and heating component; tap/heater requires a 3 kW power source
Just add water, plug in, and you’re ready to go
Easy Delivery & Setup
Lead time: 7-10 days
Delivered by kerbside pallet service (to be checked upon receipt)
We recommend two people be present to receive the delivery, as drivers are not permitted to enter premises
Once received, simply move it to your desired location, fill with water, and connect the electrical components only to a suitable supply for the selected system
Additional Details
Child-friendly design (adult supervision strongly recommended)
Available in gloss white, gloss grey or dark grey (matte) finish
For a compact, no-fuss vanity unit with hot and cold water included as standard, the 400 mm is ideal for salons, clinics, pop-ups, and more — offering simple setup, stylish design, and full functionality in a space-saving size.
Need help choosing? Read our guide to sinks without a mains water supply or compare all no-plumbing sink units.
Planning a tattoo studio setup? See our no-plumbing sink guidance for tattoo artists and studios for a dedicated use-case overview.
Compare nearby sizes: Step up to the 450mm Basics vanity unit or the 500mm vanity unit with basin if you have more space available.
Comparing vanity sizes? Read our 400mm–600mm no-plumbing vanity unit size guide.
Before you buy
- Measure the available floor width and door clearance before ordering.
- Confirm you have two suitable UK sockets available; the tap/heater needs a 3kW supply.
- This is a kerbside pallet delivery, so arrange two people to receive and move the unit.
- Hot and cold water are included as standard; upgraded tap options are optional.
- If you need more basin/worktop space, compare the 450mm and 500mm options before ordering.
How the non-plumbed system works
Fresh water is stored in a clean-water container. The automatic pump draws water through the selected heating/tap system to provide running water at the basin. Used water drains into a separate waste-water container, which is removed and emptied appropriately. The non-plumbed configuration does not require a permanent mains-water feed or fixed waste connection.
Power
The electrical requirements depend on the selected Standard, Upgraded or Sensor configuration. Heating components are high-load appliances, so use the stated product specification and make sure the socket, circuit and protective devices are suitable. If you are unsure, have the proposed supply checked by a competent electrician before use. Do not assume that every socket or circuit is suitable simply because a UK plug is fitted.
Water capacity & use
Container size and quantity vary by product. Runtime per fill depends on the selected container capacity, water flow and how the unit is used, so we do not quote a fixed number of handwashes per fill. Refill the clean-water container and empty the waste container as required.
What the terms mean
- System: the pump, heating and water-delivery components.
- Complete unit: the cabinet/furniture, basin and configured water system supplied together.
- Backwash: a larger salon hair-washing basin/unit designed for hair-washing use.
Warranty
Where the standard 12-month system warranty applies, it covers the relevant water-system/mechanical components subject to the warranty terms; normal wear, cosmetic damage, misuse and unauthorised repairs are excluded. Optional extended mechanical cover is available separately: Standard Systems £79 for 1 year / £199 for 3 years; Upgraded Systems £109 / £299; Backwash Systems £149 / £409. See the relevant extended-warranty product terms for full exclusions and claim conditions.
Company & support
Custom Basins Limited · Company No. 14159761 · Unit 6 Enterprise House, Cheney Manor Industrial Estate, Swindon, SN2 2YZ · 07368 455286 · info@custombasins.co.uk. For order updates, email warehouse@custombasins.co.uk and allow up to 24 hours for a response. Returns and cancellation information is available in our Terms of Business.
400mm Vanity Unit & Basin
£600.00
Choose Your System
Choose tap option
Tap Size
Choose Your Tap

Small Title
Unit Colour
Top Colour
Size
Warranty
Installation Type
Tap Hand
Basin Side
Door Option
Build Option
Front / Rear Facing
Tap Set
Water Can Sizes
Extra Cans
Vinyl Wrap - Whole Unit
Basin Waste - Tap Colour Matching



Flow Capacity: 3.8 litres/min (1 US gallon/min)
Rated Power: 35W
Noise: approx. 66 dB when in use – hear it in our noise demo video
Maximum Pressure: 40psi(2.8bar)
Material: Stainless steel (silver)/ABS plastic (black)
Rated voltage: 220V
Rated frequency: 50HZ
Waterproof rating: IPX4
Rated power: 3120W
Water inlet method: bottom water inlet
Wire specification: 1.5 square millimetres
Plug: UK plug
Heating tube: stainless steel heating tube
| Standard System | Upgraded System |
| Automatic water pump | Automatic water pump |
| Fast heating tap | Instant water heater |
| Mixer tap of any colour/shape |
🔧 Understanding the Difference: Standard vs Upgraded System
At Custom Basins, every unit comes with hot and cold water as standard, but we also offer an upgraded system for clients who want greater flexibility and a more premium setup.
✅ Standard System (Included with All Units)
Our standard water system is efficient, reliable, and designed for plug-and-play convenience.
-
Uses our automatic water pump for smooth operation
-
Hot and cold water are delivered via a direct connection to a fast-heating tap
-
No need to select or install a separate mixer tap – everything is built-in and ready to use
-
Ideal for those looking for a quick, functional solution with minimal setup
-
Compatible only with the tap included (mixer taps are not compatible with this system)
🔧 Upgraded System (Optional Add-On)
Perfect for clients wanting a custom look or higher-spec components.
-
Also powered by our automatic water pump
-
Features separate cold and hot water feeds, heated using an instant water heater
-
Allows you to choose any mixer tap (compatible with your basin size)
-
Great for matching taps to interior themes – pick your preferred colour, shape, or finish
-
Offers more flexibility and a more refined user experience
