---
product_id: 86725859
title: "120W Water Pressure Booster Pump 115VAC,396 GPH,21.7 PSI Household Automatic Home Booster Pump with Water Flow Switch for Home Kitchen Bathroom Irrigation(H15GR-15)"
brand: "kolerflo"
price: "€ 255.71"
currency: EUR
in_stock: true
reviews_count: 8
category: "Koler Flo"
url: https://www.desertcart.fi/products/86725859-120w-water-pressure-booster-pump-115vac-396-gph-21-7
store_origin: FI
region: Finland
---

# 120W powerful motor 396 GPH max flow rate 1/2" NPT easy install 120W Water Pressure Booster Pump 115VAC,396 GPH,21.7 PSI Household Automatic Home Booster Pump with Water Flow Switch for Home Kitchen Bathroom Irrigation(H15GR-15)

**Brand:** kolerflo
**Price:** € 255.71
**Availability:** ✅ In Stock

## Summary

> 🚿 Boost your home water game with power and precision!

## Quick Answers

- **What is this?** 120W Water Pressure Booster Pump 115VAC,396 GPH,21.7 PSI Household Automatic Home Booster Pump with Water Flow Switch for Home Kitchen Bathroom Irrigation(H15GR-15) by kolerflo
- **How much does it cost?** € 255.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/86725859-120w-water-pressure-booster-pump-115vac-396-gph-21-7)

## Best For

- kolerflo enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Setup:** Simple wrench-only installation—no plumber required, saving you time and money.
- • **Versatile Home Use:** Perfect for kitchens, bathrooms, irrigation, and solar water heaters with a wide temp range (0°F–212°F).
- • **Durable Brass Build:** Premium all-brass fittings ensure long-lasting reliability and corrosion resistance.
- • **Energy-Smart Operation:** Runs only when water flows, saving energy and cutting down your utility bills.
- • **Effortless Pressure Boost:** Automatically ramps up water pressure for steady, strong flow exactly when you need it.

## Overview

The KolerFlo 120W Water Pressure Booster Pump delivers up to 21.7 PSI and 396 GPH flow, automatically activating with water flow to maintain consistent pressure. Featuring durable brass fittings and a compact design, it’s easy to install and ideal for household water systems including kitchens, bathrooms, and solar heaters. Energy-efficient and built for steady performance, it’s a smart upgrade for any home facing low water pressure.

## Description

desertcart.com: 120W Water Pressure Booster Pump 115VAC,396 GPH,21.7 PSI Household Automatic Home Booster Pump with Water Flow Switch for Home Kitchen Bathroom Irrigation(H15GR-15) : Patio, Lawn & Garden

Review: Reasonable Pump - This water booster pump was very easy to install. We used it at our condo. It has helped with adding more pressure to our water especially during showers. I like that it has an automatic button and will only run when you turn on the tap. I found the price to be reasonable. It is a bit loud when you turn it on however you get used to it.
Review: Works but I'm not impressed - The pump works well when installed. The fittings are a pain in the bum to say the least though. It took a couple of adapters to get the hose thread to pipe thread for PVC but in the end I got them there. BUT, both ends of this thing have rubber washers to seal with. And flatly they suck. It's very hard to get this to not leak. I'm still checking it daily because the first couple times after it run a bit it started dripping. Not cool. The second thing is this pump is LOUD. I have a dehumidifier that runs under my house and I can barely hear it. I hear this pump kick on every time a faucet is turned on or the toilet flushes and it's located in the crawlspace under the house as far away as I could get it. It also says in the paperwork not to run it more than 30 minutes at a time because it might overheat. So I suppose watering my outside plants using water pressure boosted by this is out of the question. That's ludicrous to say the least. I'm using it for now. But if it goes bad, I'll definitely be replacing it with something better. Edit: Lowered to one star. It lasted six months and died. Don't waste your money.

## Features

- Applicable to the duplex apartment,suburban villas,water heater pressurized,household water pressurized, and the solar water heater pressurized. Our water pressure pump especially suitable for water heater pipe pressurization with insufficient water pressure, to prevent water supply from being cold.
- Max Pressure: 1.5bar (21.7 PSI);Max Flow Rate: 396GPH(25L/min), Max Head: 49.2ft(15m); Connection size: 1/2" NPT; Liquid temperature range: 0 F- +212 F.the water boost pump with flow switch can automatically adjusts to your needs, Increase the pressure of household water tank and keep a steady pressure.
- Easy installation, only need a wrench to connect the pump, saving you the cost of plumbers; the water booster pump is also Energy Saving ;Easy Operate and Silence Working.
- Powerful 120W Motor, High Quality Water flow switch and full brass fittings included, All-in-one unit to make the water booster pump durable and provide enough water pressure for home use.
- We provide 30 days free return and 3 months fittings parts replacement for our water boost pump.If you have any problems for using our products,feel free to contact with us at the first time,we’ll made you satisfied with your purchase.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | KolerFlo |
| Color | H15gr-15 |
| Material | Brass |
| Power Source | Corded Electric |
| Product Dimensions | 6.9"L x 3.94"W x 3.6"H |
| Style | Pressure,Solar Water |

## Product Details

- **Brand:** KolerFlo
- **Color:** H15gr-15
- **Manufacturer:** kolerflo
- **Material:** Brass
- **Maximum Flow Rate:** 6.6 Gallons Per Minute
- **Maximum Lifting Height:** 49.2 Feet
- **Power Source:** Corded Electric
- **Product Dimensions:** 6.9"L x 3.94"W x 3.6"H
- **Style:** Pressure,Solar Water
- **Voltage:** 110 Volts

## Images

![120W Water Pressure Booster Pump 115VAC,396 GPH,21.7 PSI Household Automatic Home Booster Pump with Water Flow Switch for Home Kitchen Bathroom Irrigation(H15GR-15) - Image 1](https://m.media-amazon.com/images/I/71TdscB0a3L.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Will the pump shut off atomatically once i turn my shower off ?**
A: yes it will  if you have the switch set right    its got a manual and a auto setting on the switch    manual setting is marked like this I   auto is marked like this II   so just set it on auto and forget about it     if your still worried have someone stand real close to the pump and someone else turn the water on and then off and you will hear the pump kick on then off     hope this helps   randy

**Q: Just got it installed and doesn’t matter if switch is on 1 or 2 it keeps going on and off with no water running! What’s the deal?**
A: With my pump, if the switch is in position 1 or 2 the pump only comes on when the system pump is calling for pressure. Could you have a leak? It sounds like you may have a slight pressure drop and the pump is cycling to satisfy the decrease in system pressure. Possibly blow by on one of your system valves. I would look for a small leak or a valve not holding. Hope it helps.

**Q: Do you install the check valve before or after booster pump?**
A: There is not check valve provided. If you mean the flow switch, it was installed after booster pump following installation instructions and arrow direction.

**Q: Does anyone know what the thread is on the output side. Looks like 1/2 in. pipe but it is not?**
A: 1/2 NPS on output of flow switch

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reasonable Pump
*by S***C on January 13, 2026*

This water booster pump was very easy to install. We used it at our condo. It has helped with adding more pressure to our water especially during showers. I like that it has an automatic button and will only run when you turn on the tap. I found the price to be reasonable. It is a bit loud when you turn it on however you get used to it.

### ⭐ Works but I'm not impressed
*by A***E on August 17, 2020*

The pump works well when installed. The fittings are a pain in the bum to say the least though. It took a couple of adapters to get the hose thread to pipe thread for PVC but in the end I got them there. BUT, both ends of this thing have rubber washers to seal with. And flatly they suck. It's very hard to get this to not leak. I'm still checking it daily because the first couple times after it run a bit it started dripping. Not cool. The second thing is this pump is LOUD. I have a dehumidifier that runs under my house and I can barely hear it. I hear this pump kick on every time a faucet is turned on or the toilet flushes and it's located in the crawlspace under the house as far away as I could get it. It also says in the paperwork not to run it more than 30 minutes at a time because it might overheat. So I suppose watering my outside plants using water pressure boosted by this is out of the question. That's ludicrous to say the least. I'm using it for now. But if it goes bad, I'll definitely be replacing it with something better. Edit: Lowered to one star. It lasted six months and died. Don't waste your money.

### ⭐⭐⭐⭐⭐ Excellent Water Pressure Booster!
*by M***O on January 27, 2026*

This water pressure booster pump works perfectly and delivers strong, consistent water pressure throughout my home. Installation was easy, and the automatic flow switch turns on and off smoothly when water is in use. It’s quiet, efficient, and ideal for the kitchen, bathroom, and irrigation needs. Great quality for the price—highly recommended!

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---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-05*