Grohe Rainshower Cosmopolitan 400mm Jumbo Shower Head - 28778000 | UK Bathrooms

ukBathrooms uses cookies to ensure that we give you the best experience on our website. If you continue you consent to receive all cookies on ukBathrooms. Read More.

Tiered Discount

Save on your purchases

Free Delivery Over £500

On most UK Postcodes

Express Delivery

1-2 days on stocked items


2500+ "Excellent" Reviews

Grohe Rainshower Cosmopolitan 400mm Jumbo Shower Head - 28778000

UKB Item Reference: 13520

Never knowingly beaten on price!

Our team is constantly checking other peoples prices so you don't have to! If you did see a price cheaper online we offer a price match promise, for more information click here.

Finance AvailableFree Delivery
Choose options to update prices and lead times

Delivery Estimate: 3 - 10 working days
inc. VAT
Finance Options


Grohe Rainshower Cosmopolitan 400mm Jumbo Shower Head - 28778000

Rainshowers are the newest trend in bathroom luxury, and the Grohe Rainshower Jumbo Shower delivers this luxury on a large scale. It is mounted to spray water directly downward (instead of at an angle). This makes you feel like you are standing in an actual rain storm. Plus, the jumbo head delivers more water for the ultimate showering experience. This shower head is 400mm in diameter. That means it can deliver a lot of water at once. Of course, the amount of water is partially dependent on the water pressure system.

The Grohe Rainshower can operate on as little as 0.5 bar water pressure, but 3.0 bar pressure is optimal. Buy this rainshower shower head and enjoy easy cleaning thanks to the anti-lime scale system. This keeps the chrome-coloured finish looking new for longer.

You have the choice of Grohe's 378mm wall mounted shower arm or 292mm Ceiling Mounted shower arm in the options above. Further options are available on application

Colour: Chrome

Available Variations

  • 28778000 | Grohe Rainshower Cosmopolitan 400mm Jumbo Shower Head - 28778000
  • 28497000 | Grohe Rainshower Cosmopolitan 400mm Jumbo Shower Head - 28778000 - Shower Arm Ceiling Mounted
  • 28982000 | Grohe Rainshower Cosmopolitan 400mm Jumbo Shower Head - 28778000 - Shower Arm Wall Mounted


Delivery Estimate: 3 - 10 working days
Delivery Charge: Free

Free UK delivery on all orders over £500. Excludes Northern Ireland & Northern Scotland.

Your shopping basket will automatically update the shipping charge you pay as you add items. You will only pay once for delivery depending on the items you select. For shipping to Northern Scotland, North Ireland or Europe please select from the delivery dropdown on the basket page.

Straightforward Returns

Got a problem with an order? We make returning a product easy using our aftersales page here.


This product is yet to receive any customer reviews...

Price Match Promise

Never knowingly beaten on price

We're so confident that our prices are the lowest, where possible we price match any cheaper price you find online. is one of the country's biggest and longest-running bathroom websites. And because we buy in large quantities and only sell through our website, that means we can offer discounts of up to 50% compared to the high street.

We're so confident in our prices, we include a price match with everything we sell.

In the unlikely event that you find a product cheaper, we'll happily refund the difference. Just make sure that:

  • The product is exactly the same (we only sell high quality products that we'd use ourselves).
  • The product is in stock (we ensure that virtually everything on our site is in stock/available within 3 days).
  • The cost includes VAT and delivery (all our prices include VAT, and delivery starts at just £5.95 - and for many larger items, it's completely free)

For the full terms and conditions, please click here.

Covid-19 Update

We are very much 'Business as usual'. We have put in place contactless deliveries, protected our staff, deliveries are going as scheduled and stock levels are good.

Finance Available from £ per month

Monthly Payment£
Deposit Amount£
Loan Amount£
Total Interest£
Total Payable£
This Product can also be found in
Need Help?

Contact our helpful support team by emailing them at and they will do their best to help. We don't have any sales people - just helpful people who know all about bathrooms.

Tiered Discount

Save money when you buy your entire bathroom from us. With our basket discount, no matter what you add to the basket the more you spend the bigger the additional discount is. To qualify for our first additional discount level you need to spend £1000.

Spread the word on

What does this mean?

We get live stock levels from all of our suppliers for this item. This allows us to give you more accurate stock information and lead times.

The stock information and current lead time can be found just above the item price, as shown here:

Delivery Estimate: 3 - 10 working days

If you are viewing an item that has configuration options, this info will change depending on the selections you make.

Notify You When Available?

This product is currently unavailable for immediate dispatch. If you would like us to notify you when it is available, please leave your details using the form below.