Purify Water in Home
Save More Space Under Your Sink.
Compact tankless design that leaces more room for your kitchen essentials.
- Tankless DesignMore space
- 400GDPBigger family, don't worry!
- Alkaline WaterMinerals and better taste
0.0001 micron · 70 micron hairHow reverse osmosis works
A pore measuring 0.0001 microns. Nothing you're worried about can get through there.
Reverse osmosis is not a screen that catches things. It is a membrane with pores of 0.0001 micron — a human hair is 70 microns across — and water is pushed through it under household pressure. Molecules of water fit. Dissolved lead, arsenic, nitrate, fluoride and PFAS do not, and they leave with the reject stream instead of ending up in your glass.
This is what separates it from a pitcher or a faucet filter. Carbon is good at chlorine, taste and smell, because those it can adsorb. It does nothing about what is dissolved in the water — the metals, the salts, the industrial compounds that have no taste and no colour. A carbon filter makes bad water taste better. That is not the same as making it clean.
The trade-off is real and we would rather you hear it from us. The membrane removes calcium and magnesium along with everything else, and it sends some water down the drain to carry the rejected solids away. That is the price of filtering at this level. It is also why every system we sell finishes with a post-carbon stage, and why we will tell you plainly when a carbon system is all your water actually needs.
Independent lab report Tested per NSF/ANSI
The math
Bottled water is the expensive option.
Reverse osmosis delivers the same water for pennies per gallon, from the tap you already own.
Bottled water, every year
$720 – $1,200
A family spending $60 to $100 a month
- Hauling cases home every week
- Plastic that takes centuries to break down
- No lab report, no idea what is inside
- The cost repeats every single year
Water Filter Prime RO
Starting $499
One time — then cents per gallon
- Unlimited water, straight from your faucet
- Filters last 6 months to 2 years
- Independently lab tested, results published
- DIY install in about 30 minutes, video included
The math
What your family already spends on bottled water
Count who lives in your home. A baby, a ten-year-old and a dog drink very different amounts, and the water you buy for cooking costs less per gallon than the water you buy to drink. We keep them apart so the number is yours, not an average.
Water you drink
- Gallons a month
- —
- What you buy
- —
- Costs you
- —
Water you cook with
- Gallons a month
- —
- What you buy
- —
- Costs you
- —
- Bottled water, every month
- —
- Your system, every month Replacement cartridges only. No deliveries, no bottles to carry.
- —
- You stop spending
- —
Assumes 32 ounces of drinking water per adult per day, a $7 case of 24 bottles for drinking and a $1.50 gallon jug for cooking, over an average 30.4-day month. Packs and jugs round up, because nobody buys nine tenths of a case. Adjust any of it to match your own shopping.
Pays for itself in
—
After that your water costs filters and nothing else.
Saved over five years
—
Purchase price already deducted.
Bottled water costs you
—
Every year, for as long as you keep buying it.
Find my filter
Tell us what bothers you about your water.
Pick the problem you recognise. Most families are set up in under two minutes.
Drinking & cooking water
Lead, chlorine taste, arsenic, PFOA and PFOS. You want water you would give a baby.
We recommendS02 or Y04
Dry skin & brittle hair
Chlorine in the shower is the usual culprit. Five-minute install, no tools.
We recommendShower Filter SF03
Instant hot & cold water
Tea, coffee, baby bottles — at the exact temperature, straight from the tap.
We recommendSmart Faucet H12
No room under the sink
Renting, or no cabinet space? A free-standing dispenser needs no plumbing at all.
We recommendH05I or H05K
All of the above
Coverage for drinking, cooking and showering — bundled and discounted.
We recommendBundles