Water purification tablets or filter

How much you need

Good to know

• Tablets and filters don’t make every kind of contamination safe. If there’s a do-not-drink notice, use bottled water.
• Never drink untreated water from rivers or streams.

Use-by date

Add the earliest date in your stock and you’ll see it on the home screen as it gets close.

Edit

Find it

Searches open in a new tab. Check you’re not buying something you already have.