---
product_id: 194861607
title: "MK99 Under Sink Water Filter"
brand: "frizzlife"
price: "FREE"
currency: GBP
in_stock: false
reviews_count: 13
url: https://www.desertcart.co.uk/products/194861607-mk99-under-sink-water-filter
store_origin: GB
region: Great Britain
---

# 0.5 micron ultra-fine filtration 2.0+ GPM high flow rate Tool-free quick twist filter change MK99 Under Sink Water Filter

**Brand:** frizzlife
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🚰 Elevate your tap game with pure, fast, and fuss-free hydration!

## Quick Answers

- **What is this?** MK99 Under Sink Water Filter by frizzlife
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/194861607-mk99-under-sink-water-filter)

## Best For

- frizzlife enthusiasts

## Why This Product

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

## Key Features

- • **Smart Auto Shut-Off:** Built-in valve stops water flow during filter swaps—no mess, no hassle, no water shutoff required.
- • **Flow That Keeps Up With You:** High 2.0+ GPM flow rate ensures fresh water for cooking, cleaning, and drinking without slowdown.
- • **Pure Water, Zero Compromise:** Removes 99.99% of lead, chlorine, heavy metals & odors for crystal-clear hydration.
- • **Sustainably Smart & Cost-Effective:** Replace only the core cartridge, saving money and reducing plastic waste with up to 1600 gallons per filter.
- • **Install in Minutes, No Plumber Needed:** Fits both 1/2" & 3/8" lines with direct connect hoses and converter fittings—DIY-friendly setup under 3 minutes.

## Overview

The Frizzlife MK99 Under Sink Water Filter System delivers advanced two-stage 0.5 micron filtration that removes 99.99% of contaminants including lead, chlorine, and heavy metals while preserving essential minerals. Designed for easy DIY installation with versatile fittings, it features a built-in auto shut-off valve for mess-free filter changes and supports a high flow rate of over 2.0 gallons per minute. Each eco-friendly cartridge lasts up to 1600 gallons or 2 years, making it a cost-effective and sustainable upgrade for healthier tap water.

## Description

This two-stage filter removes over 99.99% of contaminants, delivering clean, great-tasting water. The compact, easy-install design fits standard water lines.

Review: Good product - Recommend - I use a similar filter system in my motorhome & decided to purchase & install a domestic under-sink version on the cold water tap in the kitchen. Installation was straightforward and after flushing water through for 3 minutes the result was impressive. The water tasted fresh. I conducted a blind tested on my partner & she agreed the taste had improved.
Review: Excellent in-line water filter with fast flow - Really do not understand the comments about this unit leaking. It is very simple to install and DOES NOT LEAK IF FITTED BY A COMPETENT DIYer. Took me 30 minutes to remove my brand new Triflow filter (it came with our very expensive new kitchen) and replace it with this much better (flow is triple the speed and water tastes better) Frizzlife filter. I would not hesitate to recommend this, and simply ignore the “leak reviews”.

## Features

- 【Two-stage Advanced Water Purifier With 0.5 Micron】The Frizzlife MK99 Water Filtration System includes a TWO-STAGE High precise compound filter, which has a unique technology that removes over 99.99% of contaminants while leaving in all essential minerals. Reduces Lead, Heavy Metals, Chlorine, Chromium 6, Mercury, Rust, Volatile Organic Compounds, Carcinogens, and other contaminants, such as Turbidity, Odors and Bad Tastes. Enjoy pure and healthy water from the tap. No more bottled water!
- 【Fits both 1/2" and 3/8" cold water line】Super Easy Installation. Come with 3/8" Directly Connect hoses that fit standard 3/8" feed water valves under UK kitchen sinks. The Inline water filter system also comes with a 3/8" to 1/2" converter fittings that allow the system to directly install to the existing both 1/2" and 3/8" cold water line and faucet under your sink. Took less than 3 minutes and No Plumbing Required! New installation video available.
- 【Best Auto Shut Off Design】Utilizing quick change twist-in installation design makes it take less than 3 minutes for you to install the system or doing a filter replacement. Provides quick twist connection for easy, tool-free, no mess filter replacement. The filter cap is designed with a BUILT-IN shut off valve. You don't even need to shut off the water supply whenever you work on the filter cartridge replacement.
- 【High Flow Rate】Enjoy tap water as pure and healthy as spring fresh water. Tested Full Flow Rate ＞2.0GPM @60 psi. Good for cooking, washing fruits & veggies, and cleaning dishes without watermarks. If your feed water is quite hard, we would recommend to order FZ-3 filter cartridge with scale inhibition function. Please simply search "Frizzlife FZ-3 filter" or "B07XF6WM79" on desertcart.
- 【Money Saving & Satisfaction】The under counter water filter system contains a core filter cartridge inside the housing, you will only need to replace the core part of the filter cartridge instead of throwing away the whole plastic part, it will save you much money on replacing the cartridge and will do help on the environmental protection. Each cartridge with high capacity can be used for 2 years or 1,600 gallons of water, for better filtration, suggest to replace after 6-8 month.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MFYQBTX |
| Best Sellers Rank | 158,501 in DIY & Tools ( See Top 100 in DIY & Tools ) 96 in Under-Sink Filters |
| Brand | FRIZZLIFE |
| Capacity | 1600 gallons |
| Container Type | Cartridge |
| Customer Reviews | 4.2 4.2 out of 5 stars (6,015) |
| EU Spare Part Availability Duration | 2 Years |
| Included Components | filter |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 12.7L x 12.7W x 34.3H centimetres |
| Item Weight | 1.91 kg |
| LowerTemperature Range | 4 Degrees Celsius |
| Manufacturer | Frizzlife |
| Material Type | Plastic |
| Maximum Flow Rate | 9.46 Litres Per Minute |
| Model Name | Frizzlife Under Sink Water Filter System or MK99 |
| Model Number | MK99 |
| Operating Pressure Range | 20-80 PSI |
| Other Special Features of the Product | 0.5μm Deep Filtration to reduce Lead, chlorine, heavy metals, Automatic Shut-Off, Certified by IAPMO against NSF/ANSI 53 & 42 |
| Power Source | Corded Electric |
| Purification Method | Mechanical Filtration |
| Supported Water TDS Level Maximum (PPM) | 1000 |
| UPC | 753936421172 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 38 Degrees Celsius |

## Product Details

- **Brand:** FRIZZLIFE
- **Capacity:** 1600 gallons
- **Included components:** filter
- **Installation type:** Under Sink
- **Material:** Plastic
- **Package information:** Cartridge
- **Power source:** Corded Electric
- **Product dimensions:** 12.7L x 12.7W x 34.3H centimetres
- **Purification method:** Mechanical Filtration

## Images

![MK99 Under Sink Water Filter - Image 1](https://m.media-amazon.com/images/I/61iYJZvDJjL.jpg)
![MK99 Under Sink Water Filter - Image 2](https://m.media-amazon.com/images/I/71Bx1wF2izL.jpg)
![MK99 Under Sink Water Filter - Image 3](https://m.media-amazon.com/images/I/71VFtsLVzlL.jpg)
![MK99 Under Sink Water Filter - Image 4](https://m.media-amazon.com/images/I/71Wp9HwCZiL.jpg)
![MK99 Under Sink Water Filter - Image 5](https://m.media-amazon.com/images/I/71QJ6KPggnL.jpg)

## Questions & Answers

**Q: Will it remove fluoride from the water?**
A: Hi dear customer,

Thanks so much for your question.
The under sink water filter system utilizes a high precision carbon block that contains DFA(De-Fluorine Agent) that could remove fluoride and arsenic from water. 

Please do let us know if you need further information.

Kind regards,
Eva
Frizzlife

**Q: how long is the blue hose?**
A: There wasn’t a blue hose with mine

**Q: I have high water pressure so would this be compatable please?**
A: Our water pressure is pretty good and we have had no problem with the filter.  Be warned though it is not so easy to fit and we got o our plumbe tor do it - at a cost.

**Q: Does this soften the water and prevent water marks on surfaces?**
A: Hi Dear customer,

Thanks so much for your interest in Frizzlife.
The NSF certified system will only remove harmful contaminants including but not restricted to sands, large particles, chlorine, bad taste & odors, heavy metals, arsenic, fluoride, VOCs. While the beneficial minerals such as calcium and magnesium(the main substances that build up water hardness) will be kept in water. Thus, the hardness and the TDS number of the water will not be lowered that much.

Hope this could address your question. For other questions, please feel free to contact us.

Kind regards,
Frizzlife Team

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product - Recommend
*by A***S on 8 November 2023*

I use a similar filter system in my motorhome & decided to purchase & install a domestic under-sink version on the cold water tap in the kitchen. Installation was straightforward and after flushing water through for 3 minutes the result was impressive. The water tasted fresh. I conducted a blind tested on my partner & she agreed the taste had improved.

### ⭐⭐⭐⭐⭐ Excellent in-line water filter with fast flow
*by M***H on 4 April 2024*

Really do not understand the comments about this unit leaking. It is very simple to install and DOES NOT LEAK IF FITTED BY A COMPETENT DIYer. Took me 30 minutes to remove my brand new Triflow filter (it came with our very expensive new kitchen) and replace it with this much better (flow is triple the speed and water tastes better) Frizzlife filter. I would not hesitate to recommend this, and simply ignore the “leak reviews”.

### ⭐⭐⭐⭐⭐ Perfect for our needs.
*by N***L on 12 January 2026*

We live on a narrowboat and this fits perfectly under our sink. We change the filter once every 6 months or so and it works perfectly for our needs. I would recommend this to people living off grid so to speak. Flow rate is good the design makes it easy to fit and they water tastes fine.

## Frequently Bought Together

- Frizzlife Under Sink Water Filter System-NSF/ANSI 53&42 Certified High Capacity Direct Connect Under Counter Drinking Water Filtration System-0.5 Micron Reduces Lead, Chlorine, Bad Taste & Odor
- Frizzlife PLC10 Replacement Filter For FK99/FP99/SW10/SW10F Under Sink Water Filter
- Frizzlife FZ-2 Replacement Filter Cartridge For MP99, MK99, MS99 Under Sink Water Filter & MV99 RV Filter

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.uk/products/194861607-mk99-under-sink-water-filter](https://www.desertcart.co.uk/products/194861607-mk99-under-sink-water-filter)

---

*Product available on Desertcart Great Britain*
*Store origin: GB*
*Last updated: 2026-04-27*