Skip to navigation Skip to content

Dahlia Concealed Thermostatic Shower Valve & Slide Rail Kit

Rated 5.00/5 from 2 customer reviews

RRP £641.00 save 78%


In stock | Get it tomorrow

Order by 4pm and select Next Day Delivery (S)

Delivery from £3.99. Spend £500+ for free delivery*. Read full delivery info

Pay 3 interest-free instalments of £46.66 with Klarna Learn more about Klarna
Pay 4 interest-free instalments of £35.00 with Clearpay Learn more about Clearpay

What's great about it?

  • Vellamo Twist 1 Outlet Thermostatic Concealed Shower Valve
  • Drench Round Shower Riser Rail Kit
  • Minimalist Chrome-Plated Brass Shower Outlet Elbow
  • Stunning chrome finish
  • Minimum 0.2 bar water pressure required

Read full product description

Recommended extras

We've hand-picked these items because they are a great choice alongside the Dahlia Concealed Thermostatic Shower Valve & Slide Rail Kit

Dahlia Concealed Thermostatic Shower Valve & Slide Rail Kit

If ever a shower evoked a feeling of longing, then this is the one. It's sleek, contemporary, timeless and prompts a whole host of romantic daydreams. It'll be a heartbreaking goodbye when it's finally time to leave your misty bathroom; just a moment of silence as you glance over your shoulder at the valve, still glossy from condensation. However, it won't be long until a joyful reunion and you can experience it all over again.

The Dahlia shower bundle denotes elegance and beauty. Made of high grade engineering and completed with a polished chrome finish, it will be a lovely finishing touch to your bathroom.

Vellamo Twist 1 Outlet Thermostatic Concealed Shower Valve
• One outlet shower valve
• One dial controls your temperature, the second controls your water flow
• Precise water flow control
• Temperature thermostatically controlled
• Thermal protection shut-off to prevent scalding if hot or cold water should fail
• Minimum required water pressure: 0.2 bar
• Lifetime manufacturer's guarantee
• Height: 215mm
• Width: 120mm

Shower valve flow rates:
• 0.2 bar: 6.5 litres per minute
• 0.5 bar: 9.7 litres per minute
• 1.0 bar: 14.0 litres per minute
• 2.0 bar: 20.5 litres per minute
• 3.0 bar: 27.0 litres per minute

Drench Square Shower Riser Rail Kit
• Multi spray pattern shower handset
• Quick height adjustment for shower head height
• Chrome finish
• Includes flexible shower hose
• 580mm rail
• 1.5m shower hose
• 10 year guarantee

Drench Minimalist Outlet Elbow
The outlet elbow from Drench is a chrome-plated outlet elbow in a round design. Used to connect water pipework inside your wall to a shower hose, it is normally required with shower rail kits. Covered by 5 year guarantee.

• Height: 45mm
• Width: 45mm
Product Code dr-dahlia-concealed-shower-kit
Type Concealed Shower Sets & Valves
Brand Drench
Brand Range Drench Dahlia
Number of OutletsMore information 1 Outlet
Shape Square, Round
Mounting Type Wall Mounted
Popular Features Multifunction Water Flow
Material Brass, Stainless Steel
Finish Chrome
Style Modern
Minimum Water PressureMore information 0.2
GuaranteeMore information Various
Orientation Portrait
Handle Type Lever
Temperature Control Thermostatic
Flow Rate at 0.2 Bar (l/min) 6.5
Flow Rate at 0.5 Bar (l/min) 9.7
Flow Rate at 1 Bar (l/min) 14
Flow Rate at 2 Bar (l/min) 20.5
Flow Rate at 3 Bar (l/min) 27

This indicates how many water outlets you can pair with your shower valves. Choosing valves with more outlets will give you flexibility over the number of products you can add to your shower. 

Each outlet from your shower valve will divert water to the section of your shower that needs it, so each extra outlet allows you to add another product. For example: with 1 outlet you could have just a fixed shower head. 2 outlets will allow you to have a fixed shower head and shower handset. 3 will allow both of these with the addition of a body jet.

Your water pressure depends on your home's water system. It’s important to consider water pressure when buying a new tap or shower. Buying a product with a minimum water pressure that’s too high for your home will result in poor performance.

- With a combi boiler you can usually expect between 1 and 2 bar

- With a gravity system (cold water tank in attic) you may have as little as 0.1 or 0.2 bar upstairs, and perhaps 0.5 bar downstairs

- With a high pressure unvented system (hot water cylinder, no cold water tank) you will generally have between 1 and 3 bar

You can install an item with a low minimum pressure rating on a high pressure system, but avoid installing an item with a high minimum rating on a low pressure system! Read our guide to water pressure to learn more.


Please note that these guarantees are provided by the manufacturer, and will be subject to individual terms and conditions, for example avoiding abrasive bleach-based cleaning products.

If you need further info about a specific manufacturer's guarantee, please contact our team.

Back to top

Products with estimated delivery dates take a little longer to get to you safely and are not available for next day delivery.

We will do our utmost to meet these estimates, although we recommend you do not book an installer until you have received and checked your order.

If you are in a hurry, view similar products available for next day delivery.