---
product_id: 86650481
title: "SP2B Flowflex in Line Micro Pump, The Shower Power Booster is an Easy, Efficient & Effective in Line Micro Pump, DIY Solution to Poor Water Pressure, Suitable for All Plumbing Systems."
brand: "flowflex"
price: "€ 153.20"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.es/products/86650481-sp2b-flowflex-in-line-micro-pump-the-shower-power-booster
store_origin: ES
region: Spain
---

# 12V Corded Power 9 L/min Flow Rate Max 85°C Temp SP2B Flowflex in Line Micro Pump, The Shower Power Booster is an Easy, Efficient & Effective in Line Micro Pump, DIY Solution to Poor Water Pressure, Suitable for All Plumbing Systems.

**Brand:** flowflex
**Price:** € 153.20
**Availability:** ✅ In Stock

## Summary

> 🚿 Elevate your shower game—never settle for dribbles again!

## Quick Answers

- **What is this?** SP2B Flowflex in Line Micro Pump, The Shower Power Booster is an Easy, Efficient & Effective in Line Micro Pump, DIY Solution to Poor Water Pressure, Suitable for All Plumbing Systems. by flowflex
- **How much does it cost?** € 153.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/86650481-sp2b-flowflex-in-line-micro-pump-the-shower-power-booster)

## Best For

- flowflex enthusiasts

## Why This Product

- Trusted flowflex brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Compatibility:** Seamlessly fits all plumbing systems and any pipe orientation for ultimate flexibility.
- • **Whisper-Quiet Operation:** Enjoy powerful water pressure without the noise—perfect for modern living spaces.
- • **Whole-House Water Boost:** Transform every tap and shower with consistent, reliable pressure throughout your home.
- • **Compact & Durable Design:** Sleek brass and chrome finish with a lightweight 1.05 kg frame built to last.
- • **Effortless DIY Installation:** Get your water pressure boosted in just 3 simple steps—no plumber needed!

## Overview

The SP2B Flowflex In Line Micro Pump is a compact, easy-to-install solution designed to dramatically improve water pressure across all plumbing systems. Operating quietly at 12 volts with a flow rate of 9 liters per minute and a max temperature tolerance of 85°C, it offers a whole-house boost that’s perfect for millennial homeowners seeking efficient, DIY-friendly upgrades. Its durable brass and chrome construction ensures longevity, while its universal fit and whisper-quiet performance make it the smart choice for modern living.

## Description

Compact micro pump boosts water pressure for showers and plumbing. Easy DIY installation, suitable for all plumbing, quiet operation, and 85Â°C temperature rating.

Review: Great! - Brilliant. Installation was fairly easy. I had very little room to work in and too long a spanner - with proper tools and/or a bigger airing cupboard it would've been a piece of cake. It took me probably a bit less than an hour, I then had to fit a plug socket in my airing cupboard which took about 20 mins. I don't think there's much they could do to make installation easier really. Maybe include a pipe slice or offer an option that can be wired directly in directly. Who has sockets in their bathroom? All in all though I can't complain, it didn't take long to fit and I learned a few things along the way. Performance is great. Just brilliant. My shower literally did not work before. Maybe a little dribble on a good day. Now it works very well, with the small quirk of having to turn on a hot water tap first to get the pump going. It does have a manual mode, so I could wire up a switch or hook into the lights, etc but I'm happy enough with it like this. It could a limitation with the mixer shower we have. Hot water pressure is noticeably improved throughout the house. It seems to take about half the time to run a bath now. It really is brilliant, I can't overstate how good this thing is. Everyone's house and plumbing is different of course so your milage may vary. It is a little bit noisy. I can't really hear it at all in the bathroom but you can hear it in the next room and the kitchen which is underneath the bathroom. Mainly only when it's powering down, it groans for a few seconds. I haven't used any other hot water pumps but did look at reviews and installation videos for a Salamander pump. The Salamander would be considerably more expensive and probably not DIY friendly. I can say without a doubt that this beats the Salamander on cost and ease of installation. I imagine the Salamander would perform a bit better (it'd have to right?) but this is good enough. You can install a second one to increase pressure even further, which would still be cheaper and easier than the alternatives but 1 works well enough for me.
Review: excellent product - I am using this pump for hot water taps in my home (cold water is coming from the mains and showers have their own 3 BAR pump, so only hot tap water pressure was an issue). The result is amazing, and beyond my expectation. The bathroom taps now have an excellent stream of water versus the useless drizzle prior to pump installation. I had a plumber install it as he was here refurbing my bathroom anyway and th pump itself was installed in 10 mins. Some additional time was needed to install a plug in my airing cupboard so we could plug it in, but the whole thing was done and installed in 45 mins. The pump is very quiet, it’s in my airing cupboard and is of course much quieter than the shower pump. all on all i’m very pleased and hoping this product will last.

## Features

- Automatic In Line Pump
- Quiet, fits any angle or orientation, Retro-fit
- Provides a whole house solution to low water pressure.
- Easy to install: DIY in 3 Steps. Maximum sustained temperature: 85°C
- Suitable for all plumbing systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HZ7H35N |
| Batteries Required? | No |
| Colour | Copper / Brass |
| Customer Reviews | 4.2 4.2 out of 5 stars (541) |
| Date First Available | 3 Oct. 2018 |
| Finish | Chrome |
| Flow rate | 9 Litres Per Minute |
| Included Components | Pump, 22mm to 15mm Conversion Kit, 3 Amp Transformer |
| Item Package Quantity | 1 |
| Item Weight | 1.05 kg |
| Item model number | SP2B |
| Manufacturer | Flowflex |
| Material | Brass, Compression, Plastic |
| Maximum Pressure | 4 Bars |
| Part Number | SP2B |
| Power Source | Corded Electric |
| Product Dimensions | 15 x 4.5 x 12.5 cm; 1.05 kg |
| Size | 22 / 15mm |
| Style | In Line Micro Pump |
| Voltage | 12 Volts |

## Product Details

- **Brand:** Flowflex
- **Colour:** Copper / Brass
- **Global Trade Identification Number:** 05055150557411
- **Item weight:** 1.05 Kilograms
- **Material:** Brass, Compression, Plastic
- **Maximum flow rate:** 9 Litres Per Minute
- **Power source:** Corded Electric
- **Product dimensions:** 15L x 4.5W x 12.5H centimetres
- **Style:** In Line Micro Pump
- **Voltage:** 12 Volts

## Images

![SP2B Flowflex in Line Micro Pump, The Shower Power Booster is an Easy, Efficient & Effective in Line Micro Pump, DIY Solution to Poor Water Pressure, Suitable for All Plumbing Systems. - Image 1](https://m.media-amazon.com/images/I/410PGCsyJCL.jpg)
![SP2B Flowflex in Line Micro Pump, The Shower Power Booster is an Easy, Efficient & Effective in Line Micro Pump, DIY Solution to Poor Water Pressure, Suitable for All Plumbing Systems. - Image 2](https://m.media-amazon.com/images/I/414Yhd1fn3L.jpg)
![SP2B Flowflex in Line Micro Pump, The Shower Power Booster is an Easy, Efficient & Effective in Line Micro Pump, DIY Solution to Poor Water Pressure, Suitable for All Plumbing Systems. - Image 3](https://m.media-amazon.com/images/I/41eRtRfXLHL.jpg)
![SP2B Flowflex in Line Micro Pump, The Shower Power Booster is an Easy, Efficient & Effective in Line Micro Pump, DIY Solution to Poor Water Pressure, Suitable for All Plumbing Systems. - Image 4](https://m.media-amazon.com/images/I/41gb8quPRtL.jpg)
![SP2B Flowflex in Line Micro Pump, The Shower Power Booster is an Easy, Efficient & Effective in Line Micro Pump, DIY Solution to Poor Water Pressure, Suitable for All Plumbing Systems. - Image 5](https://m.media-amazon.com/images/I/41uEfxWbibL.jpg)

## Questions & Answers

**Q: I have low mains water pressure which affects 2 showers in the house. What can you suggest.**
A: We have two showers. The hot water is gravity fed and the cold water is taken from the loft tank to equalise the pressure in the shower. I dont know how the previous owners coped with the pathetic shower pressure. So I fitted two of these in the airing cupboard. One in the hot out from immersion tank (heated by by gas boiler) and one in the cold out from the loft tank. They work very well but it's best if you only have one shower in use at a time. Also if someone opens a hot water tap in a basin or kitchen then the pressure drops, but we are a small household so it's ok. The plus side of this setup is when someone opens the cold tap to water the plants or something, there is no drop in pressure as the water is coming from the loft tank ( which as a complete aside I upgraded to a byelaw 30 one.. much nicer not having bee brains and spider body floating in there.)

I'll try get round to writing a full review. In summary I am happy with these. They are not the cheapest, but they are EASY to fit and the 12V means I could do it myself. I originally fitted one pump only in the hot water feed as suggested, but the shower pulsed as the shower mixer bar tried to balance the temperature. I then fitted another one in the cold feed but due to the hot/cold ratio in the shower I had to connect the cold pump to run when the hot  pump is triggered. I bought a y-cable to do that.

Our setup is not perfect. I need to fit a timer to switch off the power to the pumps, otherwise they come on when someone opens a tap in the kitchen for example. This is annoying as the cold pump runs when only the hot is opened so the pump cavitates which doesnt sound great. I plan to fit that to the power strip feeding the AC/DC power supply for the pump. It would be nicer to hook it up to the shower extractor fan, but that means an electrician.

So.. this setup isnt the cheapest but it works and I could do it myself. I am happy with it, but will be happier when I put the timer in. I didnt need to get a plumber or electrican round, so that saved a few quid.

Hope that helps and I'll try write a proper review. I have had them for about 6 weeks now and they work great. Had I known about the cold pump needing to be manual in our setup I could have saved some money buying a manual one to slave off the hot automatic pump, but its done now and I dont want to take it out.

**Q: Hi, can someone explain what the fundamental differences (or pros/cons) of this product are compared to a pump like the Salamander? Thanks**
A: There are several differences between SPB & other pumps. The SPB is an In Line Pump and is suitable for all plumbing systems. Please contact our technical team SPB@flowflex.com for further information

**Q: Is this pump self priming?**
A: Yep it's litterally plug plump and go, when you turn the tap on it auto turns the pump on. Short delay in it picking up the water flow but we are talking only seconds.

**Q: Can this be used with pladtic pipe and fittings**
A: Yes, can be used with 15mm and 22mm plastic pipe as long as you use stiffeners inside plastic pipe.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great!
*by M***E on 11 August 2020*

Brilliant. Installation was fairly easy. I had very little room to work in and too long a spanner - with proper tools and/or a bigger airing cupboard it would've been a piece of cake. It took me probably a bit less than an hour, I then had to fit a plug socket in my airing cupboard which took about 20 mins. I don't think there's much they could do to make installation easier really. Maybe include a pipe slice or offer an option that can be wired directly in directly. Who has sockets in their bathroom? All in all though I can't complain, it didn't take long to fit and I learned a few things along the way. Performance is great. Just brilliant. My shower literally did not work before. Maybe a little dribble on a good day. Now it works very well, with the small quirk of having to turn on a hot water tap first to get the pump going. It does have a manual mode, so I could wire up a switch or hook into the lights, etc but I'm happy enough with it like this. It could a limitation with the mixer shower we have. Hot water pressure is noticeably improved throughout the house. It seems to take about half the time to run a bath now. It really is brilliant, I can't overstate how good this thing is. Everyone's house and plumbing is different of course so your milage may vary. It is a little bit noisy. I can't really hear it at all in the bathroom but you can hear it in the next room and the kitchen which is underneath the bathroom. Mainly only when it's powering down, it groans for a few seconds. I haven't used any other hot water pumps but did look at reviews and installation videos for a Salamander pump. The Salamander would be considerably more expensive and probably not DIY friendly. I can say without a doubt that this beats the Salamander on cost and ease of installation. I imagine the Salamander would perform a bit better (it'd have to right?) but this is good enough. You can install a second one to increase pressure even further, which would still be cheaper and easier than the alternatives but 1 works well enough for me.

### ⭐⭐⭐⭐⭐ excellent product
*by J***S on 19 April 2021*

I am using this pump for hot water taps in my home (cold water is coming from the mains and showers have their own 3 BAR pump, so only hot tap water pressure was an issue). The result is amazing, and beyond my expectation. The bathroom taps now have an excellent stream of water versus the useless drizzle prior to pump installation. I had a plumber install it as he was here refurbing my bathroom anyway and th pump itself was installed in 10 mins. Some additional time was needed to install a plug in my airing cupboard so we could plug it in, but the whole thing was done and installed in 45 mins. The pump is very quiet, it’s in my airing cupboard and is of course much quieter than the shower pump. all on all i’m very pleased and hoping this product will last.

### ⭐⭐⭐⭐ Small and Mighty
*by N***. on 21 June 2021*

For such a small inline pump, we are very impressed with it's performance... The features for the price are great and the flow based control very useful... This has certainly resolved the 'low flow' issue we had for certain hot feeds. Lets hope it lasts a long time and provides years of reliable service...

## Frequently Bought Together

- SP2B Flowflex in Line Micro Pump, The Shower Power Booster is an Easy, Efficient & Effective in Line Micro Pump, DIY Solution to Poor Water Pressure, Suitable for All Plumbing Systems.
- Rolson 22408 22 mm Copper Pipe Cutter

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-22*