Reverse Osmosis Systems
Best Reverse Osmosis with UV Light (2026): Top 5 by the Specs
As an Amazon Associate we earn from qualifying purchases. Specs below come from each product's Amazon listing; we do not test products in person.
For a reverse osmosis system with UV light, the iSpring leads this list with a tankless design, a UV light and a remineralization stage. The SimPure is a tankless under-sink design. The APEC is an under-sink system. The Bluevua and ecoviva are countertop units with UV stages.
Starting out? See the main guide: Best Reverse Osmosis
Top picks at a glance
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9.8 View on Amazon -
9.7 View on Amazon -
9.5 View on Amazon -
Also GreatAPEC Water ROES-PHUV759.3 View on Amazon -
9.2 View on Amazon
Compare the specs
Ranked on filtration stages, output (gpd), tankless, remineralization from each listing, plus how many buyers have rated it. A dash (—) means we could not confirm that figure from the listing.
| Pick | Filtration stages | Output (GPD) | Tankless | Remineralization | NSF/ANSI standards | Weight | Warranty |
|---|---|---|---|---|---|---|---|
| 1. iSpring RO5004F-AK UV Alkaline Reverse Osmosis Water | — | 500 GPD | Yes | Yes | — | 15 lb | — |
| 2. SimPure T1-400 Tankless UV Reverse Osmosis Water | 8 stages | 400 GPD | Yes | — | NSF/ANSI 58 | 17.64 lb | — |
| 3. Bluevua RO100ROPOT-Lite Countertop Reverse Osmosis Water Filter | 7 stages | — | — | Yes | NSF/ANSI 372 | 11.02 lb | — |
| 4. APEC Water ROES-PHUV75 | 7 stages | 75 GPD | — | Yes | NSF/ANSI 372 | — | — |
| 5. ecoviva water Mate 3 UV Reverse Osmosis Water Filter | 9 stages | — | — | Yes | NSF/ANSI 42, 53, 58 | — | 5-year |
iSpring RO5004F-AK UV Alkaline Reverse Osmosis Water
A tankless 500 GPD system with a UV light, a remineralization stage and a filter life monitor.
- Output (GPD): 500 GPD
- Tankless
- Remineralization
Good for
- Buyers who want a tankless under-sink system with UV light
- People who want 500 GPD output with remineralization
Skip it if
- You need a countertop system with no under-sink installation
- You want output over 500 GPD
It gives up to 500 gallons per day in a tankless design that frees under-sink space, with a built-in pump for low-pressure homes. The UV light lasts up to 8,000 hours, and a remineralization stage adds minerals back to the water. A filter life monitor gives automatic reminders, and it weighs 15 lb.
SimPure T1-400 Tankless UV Reverse Osmosis Water
A tankless 400 GPD system with 8 stages, UV power, a built-in pump and testing against the NSF/ANSI 58 standard.
- Filtration stages: 8 stages
- Output (GPD): 400 GPD
- Tankless
- NSF/ANSI standards: NSF/ANSI 58
Good for
- Buyers who want 8-stage filtration with UV power
- People who want 400 GPD output in a tankless design
Skip it if
- You need output over 400 GPD
- You want a countertop system with no under-sink installation
It runs 8 stages in a tankless under-sink design, with UV power that works from water flow pressure. It gives up to 400 gallons per day at a 1.5:1 pure-to-drain ratio, with a built-in pump. It is tested by SGS against the NSF/ANSI 58 standard, and it weighs 17.64 lb.
Bluevua RO100ROPOT-Lite Countertop Reverse Osmosis Water Filter
A countertop 7-stage system with UV light, remineralization and a 3:1 pure-to-drain ratio, needing no installation.
- Filtration stages: 7 stages
- Remineralization
- NSF/ANSI standards: NSF/ANSI 372
Good for
- Buyers who want a countertop system with no plumbing
- People who want UV light with remineralization in a carafe system
Skip it if
- You need an under-sink system
- You want more than 7 filtration stages
It sits on the countertop with no installation or plumbing, using a high borosilicate glass carafe for storage. It runs 7 stages including UV light and remineralization, with a 3:1 pure-to-drain ratio and a one-touch LED panel. A glass infuser fits the carafe for fruit-infused water, it is WQA certified against NSF/ANSI 372, and it weighs 11.02 lb.
APEC Water ROES-PHUV75
A 7-stage under-sink system with alkaline remineralization, a UV filter and NSF/ANSI 372 certification.
- Filtration stages: 7 stages
- Output (GPD): 75 GPD
- Remineralization
- NSF/ANSI standards: NSF/ANSI 372
Good for
- Buyers who want alkaline water with a UV filter
- People who want a 75 GPD under-sink system
Skip it if
- You need output over 75 GPD
- You want a countertop system with no under-sink installation
It runs 7 stages under the sink, with an alkaline stage that adds calcium minerals and a UV filter. A lead-free designer faucet comes in the box, with food-grade tubing and parts. It gives 75 gallons per day, is NSF/ANSI 372 certified, and suits DIY installation.
ecoviva water Mate 3 UV Reverse Osmosis Water Filter
A countertop 9-stage system with UV light, remineralization, a 3:1 pure-to-waste ratio and a 5-year system warranty.
- Filtration stages: 9 stages
- Remineralization
- NSF/ANSI standards: NSF/ANSI 42, 53, 58
- 5-year warranty stated
Good for
- Buyers who want a countertop system with a smart autofill pitcher
- People who want 9-stage filtration with UV light
Skip it if
- You need an under-sink system
- You want more than 9 filtration stages
It sits on the countertop with no installation, using a 169 oz tank and a 44 oz smart autofill pitcher. It runs 9 stages with UV light and remineralization, plus a self-cleaning cycle and smart filter life monitoring. It meets NSF/ANSI 42, 53 and 58 standards and carries a 5-year system warranty.
How to choose
UV light and filtration stages
A UV stage sits alongside the reverse osmosis membrane as one more step in the system. The ecoviva runs 9 stages, the SimPure runs 8, and the Bluevua and APEC run 7 each. Stage counts alone do not tell the whole story, so compare them with the NSF standard each system meets and with whether it includes remineralization.
Output, ratios and installation
Output in gallons per day sets how much filtered water the system makes: the iSpring gives 500, the SimPure gives 400 and the APEC gives 75. The pure-to-drain ratio sets how much filtered water comes out against wastewater: the iSpring is 2:1, the SimPure is 1.5:1 and the Bluevua is 3:1, while the ecoviva gives a 3:1 pure-to-waste ratio. Under-sink systems need space below the sink, while countertop systems plug in with no plumbing.
Remineralization and filter care
Remineralization adds minerals back after reverse osmosis. The iSpring, Bluevua, APEC and ecoviva each include it. Filter life monitors help with upkeep: the iSpring gives automatic filter life reminders, the ecoviva gives replacement alerts, and the Bluevua panel shows filter alerts. The ecoviva also runs a self-cleaning cycle that flushes internal water lines.
FAQ
Which systems here have a UV light?
All five: the iSpring, SimPure, Bluevua, APEC and ecoviva each include a UV stage.
Which systems are tankless?
The iSpring and SimPure are tankless under-sink systems, so they need no storage tank under the sink.
What NSF standards do these systems meet?
The SimPure is tested against NSF/ANSI 58, the Bluevua and APEC meet NSF/ANSI 372, and the ecoviva meets NSF/ANSI 42, 53 and 58.
Which systems need no installation?
The Bluevua and ecoviva are countertop systems that need no installation or plumbing.
