Reverse Osmosis Systems – #1 for Pure Drinking Water

PURITY. IN EVERY GLASS.

RO removes what ordinary filters leave behind, from dissolved solids to forever chemicals. Under-sink, tankless or countertop, we will help you pick the right one.

4.7 from verified reviews

All our Reverse Osmosis products

13 products

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Easy Change Reverse Osmosis SystemEasy Change Reverse Osmosis System
5 Stage Reverse Osmosis water filter system (RO5EW)
RO 5 Stage Pumped Reverse Osmosis and Additional Stage RO Mineral FilterRO 5 Stage Pumped Reverse Osmosis and Additional Stage RO Mineral Filter
RO 5 Stage Pumped Reverse Osmosis water filter system (RO5PEW)RO 5 Stage Pumped Reverse Osmosis water filter system (RO5PEW)
5 Stage easy fit Reverse Osmosis5 Stage easy fit Reverse Osmosis
ROYAL RO System (RS-106A) Quick-change systemROYAL RO System (RS-106A) Quick-change system
6 Stage Ultra Violet Reverse Osmosis water filter system(WL)6 Stage Ultra Violet Reverse Osmosis water filter system(WL)
ECO RO 5 Stage Pumped Reverse Osmosis Water Filter System (RO5ECO)ECO RO 5 Stage Pumped Reverse Osmosis Water Filter System (RO5ECO)
Astroboy Counter Top RO Unit 80GPD (ABCT)Astroboy Counter Top RO Unit 80GPD (ABCT)
Direct Flow Tankless RO System (DFRO400)Direct Flow Tankless RO System (DFRO400)
Direct Flow Ultra Slim Tankless Reverse Osmosis SystemDirect Flow Ultra Slim Tankless Reverse Osmosis System
Pentair PRF RO Merlin Tankless Reverse OsmosisPentair PRF RO Merlin Tankless Reverse Osmosis
Water DistillerWater Distiller

4-stage, remineralising or tankless?

What matters 4-stage 5-stage remineralising Tankless
Removes chlorine and taste Yes Yes Yes
Adds healthy minerals back No YesSome
Needs a storage tank Yes YesNo tank
WastewaterStandard Standard Lower
FAQs

Reverse osmosis questions, answered

What does reverse osmosis actually remove?

More than any other filter. RO forces water through a membrane that blocks dissolved solids, so it reduces chlorine, fluoride, nitrates, PFAS forever chemicals, lead and limescale in your drinking water. Each product page lists what it is rated for.

Do I lose the good minerals too?

RO removes almost everything, including small amounts of beneficial minerals. If that matters to you, choose a remineralising system. It adds calcium and magnesium back after filtration, which also improves the taste.

How much water does RO waste?

Traditional tank systems send some water to drain during filtration. Modern tankless systems are far more efficient and waste much less. If water use is a concern, look at the tankless range.

Do I need a separate tap?

Yes. RO systems run to a dedicated drinking water tap at the sink, so your normal tap is unaffected. Most of our systems include the tap, and we stock upgrades if you want to match your kitchen.

How often do I change the membrane and filters?

Pre and post filters are usually annual. The RO membrane itself lasts around two to three years depending on your water. We will remind you when a change is due.

Will it fit under my sink, and do I need a pump?

Most under-sink cupboards have room, and tankless units are the most compact. If your incoming water pressure is low, a booster pump kit sorts it. Tell us your setup and we will confirm before you order.

About reverse osmosis

Reverse osmosis is the most thorough water treatment you can fit at home. Where a carbon filter improves taste and removes chlorine, RO goes much further, forcing water through a semi-permeable membrane that blocks even dissolved contaminants.

That means it reduces things a standard filter cannot, including fluoride, nitrates, lead and PFAS forever chemicals, along with the dissolved minerals that make up your water's TDS reading. The result is exceptionally pure drinking water straight from a dedicated tap.

The trade-off is that RO removes beneficial minerals along with everything else, and traditional systems send some water to drain. Remineralising systems add calcium and magnesium back, and modern tankless systems cut waste dramatically.

We supply under-sink systems, compact tankless units, countertop options that need no plumbing, and every membrane, cartridge and tap to keep them running. Not sure what you need? Tell us your priorities and we will size the right system with no upsell.

Not sure which system?

Tell us your water and your kitchen setup. We will recommend the right reverse osmosis system and give you an honest price