---
product_id: 50705638
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 (2 Pack)"
brand: "water gem"
price: "€ 100.29"
currency: EUR
in_stock: true
reviews_count: 8
category: "Water Gem"
url: https://www.desertcart.at/products/50705638-under-sink-filter-system-replacement-inline-filter-kitchen-tap-water
store_origin: AT
region: Austria
---

# Universal 3/8" Male Stem Fit Eco-Friendly Plastic Waste Reduction WRAS Certified Safety Under Sink Filter System Replacement Inline Filter | Kitchen Tap Water Filter Cartridge | Universal 3/8" Male Stem Filter for Chlorine, Taste, Odour and Scale (2 Pack)

**Brand:** water gem
**Price:** € 100.29
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your tap water game—because your kitchen deserves the best!

## 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 (2 Pack) by water gem
- **How much does it cost?** € 100.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/50705638-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.
- • **Effortless Installation:** Compatible with John Guest push-fits for a quick, hassle-free filter replacement every 6 months.
- • **Certified Quality & Safety:** WRAS approval guarantees top-tier material safety and structural integrity for peace of mind.
- • **Sustainable Hydration Choice:** Cut down on single-use plastic waste by switching to a long-lasting under-sink filter system.
- • **Advanced Activated Carbon Filtration:** Effectively reduces chlorine, taste, odor, sediment, rust, and scale to protect your appliances.

## Overview

The Water Gem Under Sink Replacement Inline Filter (2 Pack) offers universal 3/8" male stem compatibility and WRAS certification, ensuring safe, high-quality filtration. Featuring activated carbon and a built-in scale inhibitor, it reduces chlorine, odors, taste issues, sediment, rust, and scale buildup. Easy to install with John Guest push-fits, this eco-friendly filter delivers fresh, great-tasting water straight from your tap while reducing plastic waste.

## Description

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 (2 Pack): 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 (2 Pack): desertcart.co.uk: Home & Kitchen

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 | B01H2T09V6 |
| Benefits | Improves taste and reduces odors in water |
| Best Sellers Rank | 39,783 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 119 in Water Filter Cartridges |
| Brand Name | Water Gem |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.6 4.6 out of 5 stars (463) |
| External Testing Certification | WRAS |
| Item Weight | 1.63 Pounds |
| Manufacturer | Water Gem |
| Manufacturer Part Number | unknown |
| Material Type | Activated carbon |
| Model Number | WG03 |
| Number of Items | 1 |
| Set Name | 2 Pack |
| UPC | 787269172944 |
| Unit Count | 2 Count |

## Product Details

- **Brand:** Water Gem
- **External testing certification:** WRAS
- **Item weight:** 1.63 Pounds
- **Material:** Activated carbon
- **Product benefits:** Improves taste and reduces odors in water

## 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 (2 Pack) - Image 1](https://m.media-amazon.com/images/I/619dhcwwrxL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does this filter replace the WF1230**
A: Thank you for your question, sadly from what I can see it does not. The fittings that are with the WF1230 are a different size to this filter. Regards, Finerfilters Ltd

**Q: how do you get the old filter off an instructions included**
A: Thank you for your questions, we have videos on our You Tube channel with regards to how to work the pushfit. On the fittings that you have, you need to push the collet (the circle around the filter spigot) down while pulling the spigot out. Regards, Finerfilters Ltd.

**Q: I always struggle to get old filter off, seem to need 3 hands. Any advice please?**
A: Firstly, make sure you have plenty of room in order to fit your filter. 
Secondly turn off the water supply.
Then with a felt tip pen, draw an arrow on your new filter to make sure you fit the new filter the correct way round. 
Next disconnect the old filter and refit the new filter in the reverse way to the old filter.
Finally remember to turn the water back on and check the new filter for leeks.
Job done.

**Q: can i connect this filter using 20mm hose and jubilee clips into my system. And which side of a water pump should i put it?**
A: I don't believe that this type of filter is suitable for a high output pump system as it is intended for a low output tap for filling a kettle or providing a glass of water.

## 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

## Frequently Bought Together

- 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 (2 Pack)
- 2 x Water Gem Replacement John Guest Fittings

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-04-23*