# GROHE Costa L Wall Mixer 31187001, Chrome

The GROHE Costa L wall mixer 31187001 is a chrome-finish, wall-mounted kitchen sink mixer with two handles and a swivel spout. Its wall installation suits sinks designed for this fitting, while the stated heater compatibility rules out open low-pressure water heaters.

- [Original product page](https://bargainpostbox.co.uk/product/grohe-costa-l-wall-mixer-31187001-chrome)
- [View offer](https://bargainpostbox.co.uk/visit/grohe-costa-l-wall-mixer-31187001-chrome)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: GROHE
- Model: Grohe Costa wall sink mixer, DN15
- Category: Tools & Garden > Electrical & Plumbing
- Price: 51.20 GBP
- Previous price: 70.69 GBP
- Discount: 28%
- Price checked: 2026-11-14T09:53:21.788Z
- Rating: 4.5 / 5
- Reviews: 400

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Wall-mounted design with two lever handles and a swivel spout.
- The listing states a 200 mm spout reach and a flow rate of 13 litres per minute.
- GROHE describes a StarLight finish intended to resist dirt and scratches and remain easy to care for.
- The stated connection guidance permits closed water heaters, thermal and tanks, but excludes open low-pressure heaters.

## Pros

- Swivel spout offers flexibility when using the sink.
- Two handles provide separate left and right controls.
- Metal construction and chrome finish are specified.

## Specifications

### Identity
- Brand: GROHE
- Model: Grohe Costa wall sink mixer, DN15
- Model number: 31187001
### Installation and dimensions
- Mounting type: Wall Mount
- Number of handles: 2
- Number of holes: 1
- Spout reach: 200 Millimetres
- Spout height: 4.63 Inches
- Dimensions (D x W x H): 9D x 12W x 30H centimetres
- Weight: 1 Kilograms
### Operation and flow
- Handle type: Lever
- Handle placement: Left, Right
- Valve type: Cartridge Valve
- Spout design: swivel
- Flow rate: 13 Litres Per Minute
- Electric: No
### Materials and finish
- Material: Metal
- Finish: Chrome

## Before you buy

- The listing says the tap can be rotated in all directions, but gives no installation-clearance details. Check that the wall and sink layout allow the movement you need.
- The stated heater compatibility excludes open water heaters and low-pressure devices. Confirm the existing system type before installation.

## In the box

- GROHE Costa wall sink mixer, DN15 (Included)

## A good fit for

- Kitchens with an existing or planned wall-mounted mixer connection.
- Buyers seeking a chrome-finish mixer with two handles and a swivel spout.

## Less suited to

- Installations using an open water heater or other low-pressure device, according to the supplied warning.
- Sinks designed only for deck-mounted taps.

## Customer feedback

Aggregate ratings lean positive, with most ratings in the five-star category, but a smaller share are lower. Without customer-comment evidence, these figures do not explain specific strengths or concerns. They indicate overall rating sentiment only, not how the tap performs in a particular installation.

## Frequently asked questions

### Is the GROHE Costa L 31187001 wall-mounted?
Yes. The listing identifies its mounting type as Wall Mount.
### Can it be used with an open water heater?
No. The supplied warning says it is not for open water heaters or low-pressure devices. It is stated to be for closed water heaters, thermal and tanks.
### How far does the spout reach?
The listing specifies a spout reach of 200 Millimetres.
### Does the tap have a swivel spout?
Yes. The listing describes the spout design as swivel and claims 360° flexibility.

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## Images

![GROHE Costa L Wall Mixer 31187001, Chrome — 1](https://bargainpostbox.co.uk/i/LHc80Jcfj_Zz-TM5JHivN6BKMq6QvZbbAVncQMyc_Af5IgKy6FL6YxzKGaRag6TF-JS7l6nTfPyS-cPq6g1tzAKz0r3Ebhn2cdF9u3FyryI9Ox3fH4WqECOF.jpg)

![GROHE Costa L Wall Mixer 31187001, Chrome — 2](https://bargainpostbox.co.uk/i/WDsR6ZNI5jvA7FKy4gSd-C3iImykn3MRxvy_zBxRG5kUIRYO9uU_Zm3hT5wjoISJ2wBwYk_euubiyP07-SgsNdU3C9EPFcVPxuy3K_ayrESB08GE_fas7Wxv.jpg)

![GROHE Costa L Wall Mixer 31187001, Chrome — 3](https://bargainpostbox.co.uk/i/LxCcMJ2YSUibODoWdvYC_QpCh29fY4S9Ut3jtrkxZW8Vxiu-1DIh0NnXsQLPnTSDkWvNbEhSI7wZkO0-8zu-5NLR1JMl6yyhbvJuubglQTLU-skE.jpg)

![GROHE Costa L Wall Mixer 31187001, Chrome — 4](https://bargainpostbox.co.uk/i/Eo6TnBWRSCE7F3zrxpY7n8as3vHjiq8NUSEsK9vxsd0w6CXYNBg0xw2ypVRilU66GdSuRnzCqEnAJtEZ9IyXJKjWAg_cnGU8n1ac-LxreWOsCx6a-jps3l2F.jpg)

![GROHE Costa L Wall Mixer 31187001, Chrome — 5](https://bargainpostbox.co.uk/i/GLgvIDVORFVYVQ5E4UPtxaNKoruwTKx9XMoqXghKBM7YS7YYvoe4tX043Yyryq30y8npC9_D1TgFhqwyAYAsoFGEpRigdYZSjJ4daLoIAk0vrmzx5O0nn4sI.jpg)