Electrolux All-in-One 1200GPD Filter, Replacement for All-in-One Reverse Osmosis System Under Sink, 24-Month Lifetime, 0.0001 Micron RO Membrane
Compatible replacement filter for continued system performance.
$349.99
1200 GPD
1200 GPD Smart Tankless Reverse Osmosis System with App Control
$1,299.99
$1,699.99
$400 off
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Replacement Filter
Replace the all-in-one cartridge for continued contaminant reduction and system performance.
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PUREONE 1200
High-flow RO water for everyday refills.
High-flow, tankless RO water for drinking, cooking and larger refills, without a separate storage tank.
- 1200 GPD direct flow Rated at 0.85 GPM for drinking, cooking and larger refills.
- No separate storage tank Tankless design keeps more usable space under the sink.
- One 12-stage composite cartridge Multiple filtration functions in one replacement format.
- TDS and filter status in view App and faucet display show TDS, water use and filter status.
EVERYDAY WATER, WITHOUT THE WAIT
Pure water, ready when you are.
From a glass of water and coffee to cooking and everyday refills, PureOne 1200 keeps high-capacity filtered water flowing through your day.
Filtration
12-stage filtration, in one cartridge.
Smart Control
Keep TDS, water use and filter status in view.
Installation
A tankless design for everyday under-sink space.
Specs & FAQs
Know the dimensions, flow and upkeep.
Quick reference specifications and answers for this product.
Capacity / flow1200 GPD / 0.85 GPM
System typeTankless reverse osmosis system
Dimensions17.77 x 7.12 x 10.2 in
Filtration12-stage all-in-one composite cartridge
Filter lifeUp to 2,000 gallons or 24 months
Smart featuresApp monitoring, TDS display and auto flush
Pure-to-drain ratio3:1
InstallationUnder sink
What is the rated flow?
PureOne 1200 is rated at 1200 GPD / 0.85 GPM for direct-flow RO water.
Does it use a storage tank?
No. PureOne 1200 is a tankless RO system that delivers purified water on demand.
Why does one filter provide enough filtration?
The cartridge combines several filtration media and the reverse osmosis membrane into one engineered assembly. The simpler replacement format does not mean fewer filtration functions.
Does the faucet show filtered-water TDS?
Yes. The faucet display alternates between source-water and purified-water TDS information, while also showing filter, WiFi and flushing status.
How often should the filter be replaced?
The all-in-one cartridge is designed for up to 2,000 gallons or 24 months under normal conditions. Actual life varies with source-water quality and household use, and the app tracks remaining life.
Is this system suitable for well water?
The system is designed for municipal tap water. Well-water quality varies significantly and may require pretreatment based on sediment, hardness, iron and microbiological conditions.
A simpler kind of RO system
PureOne 1200 vs. traditional tank RO
| What matters | PureOne 1200 | Traditional tank RO |
|---|---|---|
| Water delivery | 1200 GPD, direct flow | Dependent on storage-tank pressure |
| Cabinet footprint | Tankless, 7.12 in wide | System plus a separate storage tank |
| Filter maintenance | One all-in-one cartridge | Multiple filters on different schedules |
| Status visibility | App and faucet display | Usually checked manually |
| Drain efficiency | 3:1 pure-to-drain ratio | Varies by design and water conditions |
Compare
Undersink RO
Compare the current water purifier range by capacity, filtration and daily-use features.
| CompareUndersink RO |  1200 GPD$1,299.99 |  1000 GPD Alkaline$1,099.99 |  PureOne Hot 800$999.99 |  600 GPD Eco$699.99 |
|---|---|---|---|---|
| Flow rate | 1200 GPD / 0.85 GPM | 1000 GPD / 0.69 GPM | 800 GPD / 0.56 GPM | 600 GPD |
| Tankless design | Yes | Yes | Yes | Yes |
| Filtration stages | 12-stage composite | 10-stage RO | 7-in-1 | 9-stage |
| Alkaline mineralization | No | Yes, pH 7.5+ finish | No | No |
| Water output | RO direct flow | RO direct flow | RO cold + instant hot | RO direct flow |
| Pure-to-drain ratio | 3:1 | 3:1 | 3:1 | 3:1 |
| App control | Yes | Yes | Yes | No |
| Filter lifespan | Up to 24 months | RO up to 36 months / PCF 12 months | Up to 24 months | RO up to 24 months / PCF 12 months |
| Faucet / display | TDS and filter status | App TDS and filter status | Hot-water controls and app | Smart monitoring LED faucet |
| Dimensions | 17.77 x 7.12 x 10.2 in | 16 x 5.2 x 13.7 in | 17.7 x 6.7 x 17.2 in | 15.6 x 5.2 x 13.3 in |
| Hot water | No | No | Yes | No |
| Installation | Under sink | Under sink | Under sink | Under sink |
| Electricity required | Yes | Yes | Yes | Yes |
| Warranty | - | - | - | - |