Sealed
DESENRUIS Reverse Osmosis System, Dual RO Water Filter, 800GPD
Retailer ratings4.7 · 27 ratingsDESENRUIS Reverse Osmosis System, Dual RO Water Filter, 800GPD—
$140.00
- Cosmetic5
- Function5
- Completeness5
- Packaging4
Inspected Oct 1Full inspection report
Our take
An under-sink dual-membrane reverse osmosis water filtration system with an 800 GPD rated capacity and a tankless design.
- Dual RO membrane filtration
- Tankless under-sink design
- 800 GPD rated capacity, 0.55 gpm flow
- LED faucet with TDS display
- 3:1 pure-to-drain ratio
Inspection report
October 1, 2026
Every unit is scored by hand on four facets, 1 to 5 on each. There is no overall score: the four facet scores are the condition.
Original box, repacked well
The original box or a plain one, and whether the contents sit in their packing or loose.
- Open original boxFoam end caps hold the unit in place inside the original carton.
- Original carton outside
- Box corner damageThe carton has a crushed top corner and a small tear in the side panel.
Original box, repacked well
The original box or a plain one, and whether the contents sit in their packing or loose.
- Open original boxFoam end caps hold the unit in place inside the original carton.
- Original carton outside
- Box corner damageThe carton has a crushed top corner and a small tear in the side panel.
Every unit is inspected and photographed by hand, one at a time. We describe what we find as accurately as we can, and we do miss things: a mark under a light, a part we did not think to check. If a unit arrives different from this report, tell us and we will put it right under our return policy. More on the scale itself in how we rate.
About this item
This DESENRUIS system uses two reverse osmosis membranes along with carbon block and PP cotton stages to filter tap water for drinking and cooking. It is designed to mount under a sink without a storage tank, relying on a continuous flow design rated at 0.55 gallons per minute and an 800 gallon per day capacity.
The system pairs with a faucet that includes an LED display for real-time TDS readings and a filter-life indicator. A 3:1 pure-to-drain ratio is stated, which is meant to reduce the amount of wastewater produced during filtration compared to older RO designs.
The listing lists a supported maximum feed water TDS of 500 ppm and a filter life cycle of 24 months. Housing components are plastic with a metal faucet, and the system is wired as a corded electric unit for its LED display function.
Key specs
| Brand | DESENRUIS |
|---|---|
| Capacity | 800 gallons per day |
| Maximum Flow Rate | 0.55 gpm |
| Installation Type | Under Sink |
| Purification Method | Reverse Osmosis |
| Supported Water TDS Maximum | 500 PPM |
| Filter Life Cycle | 24 months |
| Material | Plastic cover, metal faucet, RO membrane/carbon block/PP cotton filters |
| Power Source | Corded Electric |
| Dimensions | 5.59"L x 16.06"W x 16.3"H |
| Model | ROS01 |
