BWT Penguin filters
Every replacement cartridge that fits the BWT Penguin, what each one is certified to remove, and how long it lasts.
The best-known magnesium-mineralising jug, and the one most often recommended for tea and coffee.
At a glance
- Takes
- 1 cartridge family
- Ships with
- BWT Magnesium Mg2+
- Cartridge life
- 120 litres (32 gal) · 4 weeks
- Sold in
- International
Some specifications for this model vary between markets and we have not confirmed them against a current data sheet, so figures we are unsure of are omitted rather than guessed.
Cartridges that fit the BWT Penguin
One cartridge family fits this jug.
BWT Magnesium Mg2+
Filters, then puts magnesium back in. Made in both a BWT fitting and a Brita MAXTRA fitting.

BWT Magnesium Mineralized Water Filter
- 3-pack
- 120 litres (32 gal) · 4 weeks
- Fits 3 jugs
Out of stock at last check on amazon.com

BWT Magnesium Gourmet L0814334 Cartridges Water Filter (Pack of 3 + 1)
- 3-pack
- 120 litres (32 gal) · 4 weeks
- Fits 3 jugs
Out of stock at last check on amazon.com

BWT Magnesium Mineralized Water + Zinc Filter Cartridges | 3 Pack |…
- 3-pack
- 120 litres (32 gal) · 4 weeks
- Fits 3 jugs

BWT Vida Water Filter Pink 2.6 L | Filter with 1 Magnesium Filter…
- 120 litres (32 gal) · 4 weeks
- Fits 3 jugs
What this jug is like to live with
What the BWT Magnesium Mg2+ actually removes
Taken from the manufacturer’s own reduction claims, with the evidence level stated.
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.
Buying the BWT Penguin itself
For anyone here to replace the jug rather than the cartridge.
BWT Penguin
Sold under different model names in different countries — this opens a search on your own Amazon so you see what is actually stocked there.
BWT Penguin questions
Which filter fits the BWT Penguin?
The BWT Penguin takes the BWT Magnesium Mg2+ cartridge, which is what it ships with.
No other cartridge family fits this jug.
How often does the BWT Penguin need a new cartridge?
The BWT Magnesium Mg2+ is rated at 120 litres (32 gal) · 4 weeks. That figure assumes average water — in a hard-water area the ion exchange resin is exhausted sooner, sometimes considerably sooner.
Volume is the honest measure rather than the calendar. A household of four reaches the rated throughput far quicker than one person does.