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ZeroWater 4-Pack Replacement Filter

Free Next Working Day Delivery to the UK
Free Next Working Day Delivery to the UK


Continue to enjoy great-tasting water with ZeroWater’s patented 5-Stage Dual Ion-Exchange Filtration technology which removes virtually all dissolved solids from your water with this 4-pack replacement filter set. ZeroWater filters remove 99.6% of TDS (Total Dissolved Solids) and are the only pour-through filters on the market certified by US based NSF (National Sanitation Foundation) to reduce Lead.

Key Features

  • Patented 5-stage Ion-Exchange Filtration system
  • Removes 99.6% of TDS (Total Dissolved Solids) 
  • Certified* to reduce Lead and PFAO/PFOS (“forever chemicals”)

Easy to install and simple to use

Simply twist the filter into the bottom of the reservoir until there is a complete seal between the filter, O-ring and reservoir, fill the reservoir with cold tap water and place the lid on top, allowing the water to pass through before re-filling. Store in or outside your refrigerator depending on your water temperature preference to enjoy the safest, purest-tasting water. 

5-Stage Ion Exchange Filtration

ZeroWater’s patented 5-Stage Ion Exchange Filtration system can remove 99% of all Fluoride and other inorganics, such as nitrates. Additionally, IAPMO certification proves the filter reduces PFOA/PFOS (“forever chemicals”), Lead, Chromium and Mercury, rest assured your water is of the highest quality. Your water will first pass through a coarse filter screen to remove any suspended solids such as rust and dirt that make your water appear cloudy, and then a foam distributor will remove any additional suspended solids. Next, a multi-layer activated carbon and oxidation reduction alloy will remove organic contaminants such as Mercury, Chlorine, Chloramine, pesticides and herbicides while stopping bacteria from growing. The Dual Comprehensive Ion Exchange Resin will then remove inorganic compounds such as metals, non-metals and even radiological contaminants. Finally, an ultra-fine screen and non-woven membrane layers will remove any remaining solids.

Guarantee quality water filtration

It is not uncommon for UK tap water to contain TDS (Total Dissolved Solids) between 100-500 PPM. You can rest assured your water quality is pristine when using authentic ZeroWater replacement filters. After passing through ZeroWater’s patented 5-Stage Ion Exchange Filtration system your water will have “000” PPM (Parts Per Million) leaving you confident in the quality of your drinking water. Please note that it is normal for this measurement to increase as the filtration system ages while still filtering your water to impeccable levels of cleanliness. Use your free laboratory-grade water metre included with the purchase of any ZeroWater filtration device to check your TDS levels and once the metre reads “006” or above, replace your filter to ensure you are maintaining high-quality water filtration. 

*Certified to NSF/ANSI standards 42 and 53. Issued 5/7/2021

Additional Information 

ZeroWater Filter Performance Sheet

Product FAQ

Free Next Working Day Delivery to the UK


Filter Replacement:
When the TDS metre reads 006 or above
30 Days
2.4 KG

Product Reviews


How Long does shipping usually take?

Deliveries to the UK are sent with a Free Next Working Day service on orders over £100 that operates from Monday to Friday. This timeframe increases to 2 days for UK offshore islands and Scottish highlands. Deliveries abroad will vary in length depending on the destination, for more specific information please contact us. Please be aware that orders must be placed before 15:00 to receive them on the following working day. Orders placed after this time will be dispatched on the closest following working day instead.

How much will delivery cost?

All orders destined for the UK with a total value of £100 or more are eligible for Free Delivery. Orders with a lower value will have a standard delivery charge of £3.95. For a full list of all our available delivery options, please see our delivery information page.

What Are They Payment Options?

We currently accept payments using credit card and PayPal, Paypal also includes pay in three and pay later.

What are the Shipping Options?

Our Shipping options include free next-day delivery to the UK mainland on orders over £100, orders below £100 would have to pay £6.95 for next-day delivery or £3.95 for standard delivery. If you would like to receive your parcel on the weekend, There is also an option for that, costing £14.95. For UK offshore deliveries, we offer free delivery on all orders over £150 and for orders below £150, shipping may vary from £7.50 - £10.95. If you would like more information on this, view our delivery rates webpage here.

What is the Return Policy?

If you have received a faulty or damaged product, you can reach out to our support team ( to discuss your available options. These include receiving a refund or getting another unit sent out to you as a replacement and shipping the faulty and or damaged unit back. If you have used the product before contacting us, you would need to provide evidence that the unit was faulty before use and did not become damaged or faulty due to user error when using the product. If you would like to read a more in-depth breakdown of our returns policy, we have a full webpage dedicated to that here.

If I order On the Weekend when will I receive it?

If you order on the weekend, your order will be packed and shipped on the next working day, and delivery will be dependant on the options chosen.