Oasly is an all-in-one water filtration service for your home. We install a professional reverse osmosis system under your kitchen sink that turns your Barcelona tap water into unlimited pure, mineralized drinking water. No more bottles, no more carrying, no more microplastics.

The filtration:
Our system uses a multi-stage reverse osmosis process. Water is pushed through an ultra-fine membrane that blocks microplastics, heavy metals, PFAS, chlorine, bacteria, viruses, and pharmaceutical residues. Then it passes through a remineralization filter that adds back essential minerals like calcium and magnesium, so you get water that's not only pure, but also tastes great and hydrates properly.

What's included in the subscription:

• The Oasly reverse osmosis machine and mineralization cartridge
• Professional installation in your home
• Yearly new filters
• Full maintenance & filter change service
• Free welcome package: Oasly stainless steel bottle, glass carafe, and tote bag
• Free relocation if you move within our service area

Pricing:
You pay €24.90 per month, or with the yearly subscription €249/year, saving you €50 compared to the monthly plan. We don't require a deposit to start your subscription and there are no upfront costs.

Prefer to own it?
You can also buy the system outright for €699 (with installation in Barcelona) or €629 (machine only, without installation).

Getting started takes only a few minutes:

• Chat with us on WhatsApp: we confirm your address, answer your questions and schedule your installation
• Our technician installs everything, usually within 2 to 3 days so there are no long waiting times
• Enjoy unlimited filtered, mineralized water straight from your tap

Have a question before you sign up? Just tap the WhatsApp button and we'll help.

Every subscription includes the Oasly machine and mineralization cartridge, professional installation, yearly new filters, full maintenance & filter change service and the free welcome package. No deposit, no upfront costs.

Our advanced reverse osmosis (RO) system filters your water in two key steps:

1. Ultra-Fine Filtration – Water is pushed through a reverse osmosis membrane of about 0.0001 micron, roughly 200× smaller than the smallest virus. SGS testing (new membrane) measured lead 99.8%, arsenic 99.9%, PFOS 99.6% and total dissolved solids 94–95%.

2. Remineralization – Once filtered, we add back essential minerals like calcium and magnesium to improve taste and provide optimal hydration and health benefits.

The result? Fresh, mineral-rich water, with harmful contaminants reduced—just the way it should be.

Yes. Most of our customers rent, and in almost every case we can install without drilling a new hole in your countertop or sink.

The 3-way faucet solution:
When you schedule your installation with us on WhatsApp, you choose your faucet. If you can't or don't want to drill, we replace your existing tap with a 3-way faucet, which gives you hot, cold and filtered water from a single tap. Your original faucet is kept safe.

When you move out:

• We remove the Oasly system
• We reinstall your original faucet
• Your kitchen goes back exactly as it was

If you're unsure about your specific kitchen, send us a photo on WhatsApp and we'll tell you right away which option fits.

The installation takes around an hour, we leave your kitchen clean, and we'll show you how everything works before we go. You'll be drinking filtered water the same day.

It does and that's exactly why our system doesn't stop there.

Reverse osmosis strips almost everything out of the water, the contaminants and the minerals. The water then passes through our remineralization cartridge, which adds minerals back in. The result is water that's genuinely pure but still tastes like water, and still hydrates you properly. Pure water without the flat taste.

Once a year, and we handle it. We get in touch, book a slot, and swap the filters for you. It's all included in your subscription.

Just let us know before your move and we'll take care of it. Relocation is free if you move within our service area — we uninstall the system at your old apartment, reinstall your original faucet there, and set everything up again at your new home.

If you're moving outside our service area, you can cancel. After the first 12 months that's free of charge. For cancelations before 12 month we charge a 75 Euro fee to cover the cost for unit removal.

You can cancel anytime, no long-term contracts.

Cancellations are free after the first 12 months. Before that, there's a €75 service fee to cover unit removal.