---
product_id: 50705797
title: "Under Sink Filter System Replacement Inline Filter | Kitchen Tap Water Filter Cartridge | Universal 3/8\" Male Stem Filter for Chlorine, Taste, Odour and Scale (4 Pack)"
brand: "water gem"
price: "692 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Water Gem"
url: https://www.desertcart.pl/products/50705797-under-sink-filter-system-replacement-inline-filter-kitchen-tap-water
store_origin: PL
region: Poland
---

# 6-month steady filtered water Eco-friendly plastic waste reduction WRAS certified safety & quality Under Sink Filter System Replacement Inline Filter | Kitchen Tap Water Filter Cartridge | Universal 3/8" Male Stem Filter for Chlorine, Taste, Odour and Scale (4 Pack)

**Brand:** water gem
**Price:** 692 zł
**Availability:** ✅ In Stock

## Summary

> 💧 Filter your flow, fuel your lifestyle.

## Quick Answers

- **What is this?** Under Sink Filter System Replacement Inline Filter | Kitchen Tap Water Filter Cartridge | Universal 3/8" Male Stem Filter for Chlorine, Taste, Odour and Scale (4 Pack) by water gem
- **How much does it cost?** 692 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/50705797-under-sink-filter-system-replacement-inline-filter-kitchen-tap-water)

## Best For

- water gem enthusiasts

## Why This Product

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

## Key Features

- • **Pure Tap Water, Always:** Enjoy fresh, filtered water directly from your kitchen tap—no more refilling jugs or waiting.
- • **Sustainable Hydration Choice:** Cut down on plastic waste by switching to a long-lasting inline filter that’s kind to the planet.
- • **Certified Safety & Reliability:** WRAS approval guarantees top-tier material safety and structural integrity for peace of mind.
- • **Advanced Activated Carbon Filtration:** Effectively reduces chlorine, sediment, rust, taste, odor, and scale to protect your appliances.
- • **Effortless Installation & Replacement:** Universal 3/8" male stem fits John Guest push-fits; swap filters easily every 6 months without hassle.

## Overview

The Water Gem Under Sink Replacement Inline Filter offers a universal 3/8" male stem design compatible with John Guest push-fits, delivering consistently fresh, great-tasting water by reducing chlorine, sediment, rust, and scale. WRAS certified for safety and durability, this activated carbon filter is easy to install and replace every six months, making it a smart, eco-conscious upgrade for any modern kitchen.

## Description

Free delivery and returns on eligible orders. Buy Water Gem Under Sink Filter System Replacement Inline Filter | Kitchen Tap Water Filter Cartridge | Universal 3/8" Male Stem Filter for Chlorine, Taste, Odour and Scale (4 Pack) at desertcart UK.

Review: Excellent, Bristan Empura Compatible - Arrived very quickly, simply but well packaged in a heavy guage polythene sleeve and outer desertcart cardboard 'envelope'. No fitting instructions, so - as this was my first filter change for my newish tap - I was a tad alarmed. A quick Google search and Bristan's website (because my tap is the Bristan AR SNKPURE C Artisan Kitchen Sink Tap with 3in1 Operation) provided the instructions I needed to do the job. Even after isolating the water supply, the filter and pipes do retain quite a lot of water! A few towels and a large stew pot helped. Replacing this cartridge will be easier next time, now I know what to do and how to do it. A word of caution about the push fit pipes to filter fittings: push the little ring that is where the fitting joins the filter, towards the pipe. This releases the pipe with just a gentle tug. Otherwise you'll be tugging until you're blue in the face. You probably already know this, but I didn't and I spent quite a while on YouTube... The Bristan instructions that I've mentioned, don't show this as they assume a certain level of knowledge that I just didn't have. In summary: easy to fit, remember the push fit trick, have towels and large container handy, flush through with 20 ltrs before use. Job done. I hope this helps
Review: Under sink water filter - Excellent under sink water filters. Taste the difference in the water when plumbed in 100%

## Features

- Filtered Water on Tap: Water Gem ensures a steady supply of perfectly filtered water directly from the tap, when ever you want it, without the need for a filter jug which needs frequent refills.
- Activated Carbon: Water Gem effectively reduces sediment, dirt and rust. The Inbuilt scale inhibitor also helps reduce costly scale that can damage your appliances such as kettle, coffee machine etc.
- WRAS Certified: Water Gem filters are WRAS approved, complying with the highest standards set out by water regulators in the UK, ensuring material safety and structural integrity.
- Easy to fit: Thanks to Compatibility with John Guest push-fits and constructed from WRAS approved materials. Simply change the easy to fit Water Gem filter every 6 months.
- Eco-Friendly Choice: Choosing Water Gem means that you are reducing the amount of plastic waste that comes from plastic water bottles and containers; contributing to a cleaner, healthier environment.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00FEHTN4S |
| Benefits | Improves Taste and Odor |
| Best Sellers Rank | 39,783 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 119 in Water Filter Cartridges |
| Brand Name | Water Gem |
| Customer Reviews | 4.6 4.6 out of 5 stars (463) |
| External Testing Certification | WRAS |
| Item Dimensions D x W x H | 5D x 5W x 32H centimetres |
| Item Weight | 700 Grams |
| Manufacturer | Water Gem |
| Material Type | Activated carbon |
| Model Number | Water Gem... |
| Number of Items | 1 |
| Unit Count | 1 count |

## Product Details

- **External testing certification:** WRAS
- **Item weight:** 700 Grams
- **Material:** Activated carbon
- **Product benefits:** Improves Taste and Odor
- **Product dimensions:** 5D x 5W x 32H centimetres

## Images

![Under Sink Filter System Replacement Inline Filter | Kitchen Tap Water Filter Cartridge | Universal 3/8" Male Stem Filter for Chlorine, Taste, Odour and Scale (4 Pack) - Image 1](https://m.media-amazon.com/images/I/71RBBC+hwkL.jpg)
![Under Sink Filter System Replacement Inline Filter | Kitchen Tap Water Filter Cartridge | Universal 3/8" Male Stem Filter for Chlorine, Taste, Odour and Scale (4 Pack) - Image 2](https://m.media-amazon.com/images/I/413dlurK4gS.jpg)
![Under Sink Filter System Replacement Inline Filter | Kitchen Tap Water Filter Cartridge | Universal 3/8" Male Stem Filter for Chlorine, Taste, Odour and Scale (4 Pack) - Image 3](https://m.media-amazon.com/images/I/71oW-3To27L.jpg)
![Under Sink Filter System Replacement Inline Filter | Kitchen Tap Water Filter Cartridge | Universal 3/8" Male Stem Filter for Chlorine, Taste, Odour and Scale (4 Pack) - Image 4](https://m.media-amazon.com/images/I/71Uf0yo0prL.jpg)
![Under Sink Filter System Replacement Inline Filter | Kitchen Tap Water Filter Cartridge | Universal 3/8" Male Stem Filter for Chlorine, Taste, Odour and Scale (4 Pack) - Image 5](https://m.media-amazon.com/images/I/71v1Sj+XvaL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent, Bristan Empura Compatible
*by E***N on 28 June 2021*

Arrived very quickly, simply but well packaged in a heavy guage polythene sleeve and outer Amazon cardboard 'envelope'. No fitting instructions, so - as this was my first filter change for my newish tap - I was a tad alarmed. A quick Google search and Bristan's website (because my tap is the Bristan AR SNKPURE C Artisan Kitchen Sink Tap with 3in1 Operation) provided the instructions I needed to do the job. Even after isolating the water supply, the filter and pipes do retain quite a lot of water! A few towels and a large stew pot helped. Replacing this cartridge will be easier next time, now I know what to do and how to do it. A word of caution about the push fit pipes to filter fittings: push the little ring that is where the fitting joins the filter, towards the pipe. This releases the pipe with just a gentle tug. Otherwise you'll be tugging until you're blue in the face. You probably already know this, but I didn't and I spent quite a while on YouTube... The Bristan instructions that I've mentioned, don't show this as they assume a certain level of knowledge that I just didn't have. In summary: easy to fit, remember the push fit trick, have towels and large container handy, flush through with 20 ltrs before use. Job done. I hope this helps

### ⭐⭐⭐⭐⭐ Under sink water filter
*by Y***D on 25 June 2025*

Excellent under sink water filters. Taste the difference in the water when plumbed in 100%

### ⭐⭐⭐⭐ Domestic water filtration
*by S***S on 26 June 2025*

Needs to adress PFAS and PFOS issues in future product

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-18*