BWT Magnesium Mg2+ for MAXTRA jugs
BWT’s magnesium cartridge built to the Brita MAXTRA fitting, so it drops into a Brita jug.
At a glance
- Fits
- 12 jugs
- Rated life
- 120 litres (32 gal) · 4 weeks
- Evidence
- Maker's claim
- Pack sizes
- 1, 2, 3, 4, 6, 12
BWT sells its magnesium cartridge in two fittings and they are not the same product. This is the one made to the Brita MAXTRA fitting, so it goes into a Marella, a Style or any other international Brita jug and mineralises the water with magnesium on the way through. Check the packaging names MAXTRA or Brita compatibility explicitly before buying — the BWT-fitting version looks similar, costs about the same, and will not go in.
Buy BWT Magnesium Mg2+ for MAXTRA jugs cartridges
Sorted by pack size. Per-cartridge cost falls steeply with pack size — this is where the money in this category is saved or wasted.
BWT Magnesium Mineralized Water Filter
Maker's claim- 3-pack
- 120 litres (32 gal) · 4 weeks
- Fits 12 jugs
Third-party cartridge. Seat it firmly and check it sits flush — one that stands proud lets unfiltered water past.
Out of stock at last check on amazon.com
BWT Magnesium Gourmet L0814334 Cartridges Water Filter (Pack of 3 + 1)
Maker's claim- 3-pack
- 120 litres (32 gal) · 4 weeks
- Fits 12 jugs
Third-party cartridge. Seat it firmly and check it sits flush — one that stands proud lets unfiltered water past.
Out of stock at last check on amazon.com
BWT Magnesium Mineralized Water + Zinc Filter Cartridges | 3 Pack |…
Maker's claim- 3-pack
- 120 litres (32 gal) · 4 weeks
- Fits 12 jugs
Third-party cartridge. Seat it firmly and check it sits flush — one that stands proud lets unfiltered water past.
BWT Filter Cartridges Soft Filtered Water Extra | Extra Limescale…
Maker's claim- 3-pack
- 120 litres (32 gal) · 4 weeks
- Fits 12 jugs
Third-party cartridge. Seat it firmly and check it sits flush — one that stands proud lets unfiltered water past.
Out of stock at last check on amazon.com
BWT MAGCART Premium Magnesium Mineralizer Replacement Cartridge
Maker's claim- 120 litres (32 gal) · 4 weeks
- Fits 12 jugs
Third-party cartridge. Seat it firmly and check it sits flush — one that stands proud lets unfiltered water past.
Out of stock at last check on amazon.com
BWT Aquameter LF Water Filter Meter 3/8" with LCD Display
Maker's claim- 120 litres (32 gal) · 4 weeks
- Fits 12 jugs
Third-party cartridge. Seat it firmly and check it sits flush — one that stands proud lets unfiltered water past.
Out of stock at last check on amazon.com
What it removes — and what it does not
Does not reduce
Listed because it is the more useful half. Every cartridge on the market reduces chlorine taste; what separates them is what they leave behind.
The manufacturer states the reduction. No independent verification is offered. Common on European jugs, which are generally not NSF-certified at all because NSF is a North American scheme.
Jugs that take the BWT Mg2+ (MAXTRA fit)
Every jug in our data with this fitting.
Cartridges that fit the same jugs
Interchangeable with this one — a straight swap, not an adapter.
BWT Magnesium Mg2+ for MAXTRA jugs questions
Which jugs take the BWT Magnesium Mg2+ for MAXTRA jugs?
12 jugs in our data take this cartridge: Brita Marella, Brita Marella XL, Brita Style, Brita Marella Cool, Brita Aluna, Brita Flow, Brita Elemaris, Brita Fjord, among others.
It is built to the Brita MAXTRA+ and Brita MAXTRA PRO fitting, so it also drops into jugs made for those cartridges.
How long does a BWT Magnesium Mg2+ for MAXTRA jugs cartridge last?
Rated at 120 litres (32 gal) · 4 weeks.
That is a throughput figure rather than a calendar one. Hard water and heavy use both exhaust a cartridge sooner than the box suggests.
Is the BWT Magnesium Mg2+ for MAXTRA jugs certified?
The manufacturer states the reduction. No independent verification is offered. Common on European jugs, which are generally not NSF-certified at all because NSF is a North American scheme.
Will a BWT Magnesium Mg2+ filter fit instead?
No. BWT Magnesium Mg2+ is the same brand but a different fitting, and the two do not interchange in either direction.
This is the most common mistake in the BWT range, and there is no adapter.