Rank #5 in Best Water Filter Jug 2026: 10 Ranked by Cost Per Litre
AQUAPHOR Onyx Water Filter Jug 4.2L with 3 Maxfor+ Cartridges
Price and rating as shown on Amazon when we collected them. Both change.
The AQUAPHOR Onyx is the largest jug in this ranking at 4.2 litres, which is the reason to pick it: fewer refills for a household that drinks a lot of water, with three Maxfor+ cartridges included, a 60 day filter life cycle, BPA-free and shatterproof construction, dishwasher safe except for the lid, at 1.25 kilograms.
Sixty days between cartridges is twice the four week cycle most BRITA models quote, which changes the running cost calculation significantly. Shatterproof matters in a fridge where a jug gets knocked about. At the time of collection it carried 5,146 ratings at 4.6 stars. Everything here comes from the Amazon listing rather than our own testing.
How those 5,146 ratings break down
An average hides its own shape. This is the spread behind the 4.6 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Other Special Features of the Product | BPA-free, Countertop, Dishwasher safe (except lid), shatterproof |
|---|---|
| Container Type | Cartridge,Jug |
| Installation Type | Countertop |
| Purification Method | Ion Exchange |
| Power Source | Battery Powered |
| Upper Temperature Rating | 25 Degrees Celsius |
| Supported Water TDS Level Maximum (PPM) | 500 |
| Filter Life Cycle | 60 Days |
| Item Dimensions L x W x H | 24L x 16W x 27H centimetres |
| Capacity | 4.2 litres |
| Item Weight | 1.25 kg |
| Material Type | Plastic |
| Brand | AQUAPHOR |
| Included Components | 1 table water filter, 3 filter cartridges |
| Model Name | Onyx |
| Model Number | Carafe filtrante Onyx 4,2 L |
| Global Trade Identification Number | 04744131017204 |
| Manufacturer | AQUAPHOR |
| Number of Items | 1 |
| Number of Packs | 1 |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Love the look of this filter jug, which is shaped more like a traditional jug shape.Having had the filter countdown break on my last 2 Brita, thought it was time to try a mechanical countdown. Also likely to be more accurate, given it's based on actual number of times lid is opened rather than just by week.We've been using it for just over a week now, & it's hardly moved at all...so maybe the claim that filters can last 2 months will turn out to be true.The filters are easy to fit & do seem to filter more quickly. Water tastes absolutely the same as my Brita-filtered water did - water quality is just as I would hope.The huge capacity is great - but it does mean it's quite heavy, so anyone struggling to lift anything a bit heavier might need to consider that.For us, it's brilliant - attractive, easy to use, great-tasting water & brilliant value”
Verified purchase“Instructions could be better but it is incredible. Going to use the water for my Bluair dreamwell humidifier, topping up my fridge water dispenser, Nespresso machine & kettle ..With 3 cartridges included & being 4.2L .This is an absolute bargain.”
What it is up against
The rivals it was ranked against in Best Water Filter Jug 2026: 10 Ranked by Cost Per Litre.
Questions people ask
What is the capacity?
4.2 litres, the largest in this ranking.
How long does each filter last?
60 days, per the filter life cycle.
Is it dishwasher safe?
Yes, except for the lid, as the listing specifies.
Is it shatterproof?
Yes, the listing describes it as shatterproof.
How many ratings does it have?
5,146 at the time of collection, averaging 4.6 stars.
What is the model name?
Onyx, as listed.
Comments
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