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Item #:
1183803
Hydro-Logic 31040 300-GPD Stealth-RO300 Reverse Osmosis Filter
88% of respondents would recommend this to a friend
Item #:
1183803
TTD 2170
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Order now and get it around Thursday, September 24
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Get cleaner and safer water with our Reverse Osmosis system that removes 98% of chlorine and contaminants while wasting only 25% less than other RO systems. Up to 300-gallon per day with automatic shut-off cartridge.
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What Stands Out
High Efficiency
The Hydro-Logic Stealth-RO300 filters up to 300 gallons per day, providing an efficient and reliable water purification solution for households or businesses needing large volumes of purified water.
Space-Saving Design
This reverse osmosis system features a compact design that fits easily under sinks, making it ideal for users with limited space while still delivering exceptional performance.
Easy Maintenance
Designed for user convenience, the Hydro-Logic 31040 comes with quick-change filters that simplify maintenance, ensuring consistent water quality without the hassle of complicated upkeep.
Product Details
- Removes 98-Percent of chlorine and contaminants and 96 percent to 99 percent PPM rejection
- Wastes approximately 25-Percent less than other RO Systems and pH is 3-11
- Up to 300-Gallon Per Day and maximum feed flow rate is 2 GPM
- Automatic Shut-Off Cartridge and temperature limit is up to 140 degree Fahrenheit (60 degree Celsius) depending on pressure and time under load
- Wall Mountable Metal Bracket
| Other Special Features of the Product | Chlorine Reduction |
| Container Type | Cartridge |
| Installation Type | Under Sink |
| Purification Method | Reverse Osmosis |
| Power Source | Corded Electric |
| Maximum Flow Rate | 2 gpm |
| Upper Temperature Rating | 140 u00b0F |
| Supported Water TDS Level Maximum (PPM) | 99 |
| Item Dimensions L x W x H | 3"L x 3"W x 3"H (7.6 x 7.6 x 7.6 cm) |
| Capacity | 200 gallons_per_day |
| Material Type | Metal |
| Brand Name | HydroLogic |
| Included Components | 5' inlet tubing, 8' product water and drain tubing, filter wrench, garden hose connector, inline shutoff valve |
| Model Name | Stealth-RO300 Reverse Osmosis Filter |
| Model Number | HL31040 |
| UPC | 767654489130 812111010645 812111010041 701003120183 |
| Global Trade Identification Number | 00767654489130, 00812111010041, 00812111010645 |
| Manufacturer | HydroLogic |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Number of Packs | 1 |
| Item Type Name | Reverse Osmosis Filter |
| Part Number | 31040 |
| Brand | HydroLogic |
| Special Feature | Chlorine Reduction |
| Product Dimensions (L x W x H) | 3"L x 3"W x 3"H (7.6 x 7.6 x 7.6 cm) |
| Material | Metal |
| Included Components | 5' inlet tubing, 8' product water and drain tubing, filter wrench, garden hose connector, inline shutoff valve See more |
| Package Information | Cartridge |
Who Should Buy?
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Homeowners
Ideal for homeowners looking for high-quality water purification with minimal maintenance and reduced waste.
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Aquarium Owners
Perfect for aquarium enthusiasts requiring purified water to maintain a safe environment for their aquatic pets.
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Health Conscious Users
Beneficial for users focused on health and wellness, providing clean water free from contaminants and pollutants.
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Budget-Conscious Buyers
Not ideal for users looking for a low-cost water filtration option as it is a premium-priced system.
Product Description
Hydro-Logic 31040 300-GPD Stealth-RO300 Reverse Osmosis Filter
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Customer Questions & Answers
-
Question:
What does this system remove from the water?
Answer: This system removes 98% of chlorine and contaminants. -
Question:
How much water can this system purify per day?
Answer: This system can purify up to 300 gallons per day. -
Question:
Does it come with an automatic shut-off cartridge?
Answer: Yes, it comes with an automatic shut-off cartridge.
HydroLogic Under-Sink & Countertop Filtration HL31040 Editorial Review
The Hydro-Logic 31040 300-GPD Stealth-RO300 Reverse Osmosis Filter has garnered a mostly positive reception from customers, particularly for its effective performance in purifying hard water. Users frequently report significant reductions in total dissolved solids (TDS) levels, with one reviewer experiencing a drop from 500 ppm to under 10 ppm, demonstrating the system’s efficiency in improving water quality. This benefit extends beyond drinking water; customers have also noted that using the treated water serves as an excellent cleaning agent for household tasks, leaving surfaces streak-free and clean. Many users praise the ease of setup, with the unit reportedly requiring only a minimal amount of time to assemble. Once operational, it generally meets expected performance metrics, although some users have noted that the flow rate is slower than advertised, with one user estimating actual production to be around 70 gallons per day during their first use, significantly lower than expected. Customer service also receives commendation for being responsive and helpful, particularly when issues arise, such as low TDS readings due to potential defects in the membranes. The company’s willingness to address problems has fostered positive sentiments among users. However, the product is not without its drawbacks. The lack of an auto shut-off feature has been highlighted as a potential issue, with users suggesting that it requires careful monitoring during operation to avoid overflow. Additionally, some reservations exist regarding the system’s waste production, with customers expressing concern over water waste, although finding ways to repurpose the waste water (e.g., for garden use) has been a common workaround. Overall, the Hydro-Logic 31040 Stealth-RO300 is well-regarded as an efficient and effective water filtration system suited for specific applications, albeit with some Considerations regarding its operational speed and water waste. **
Customer Reviews & Ratings
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Pros
- Highly effective in lowering TDS levels
- Produces clean, great-tasting water
- Easy to set up with clear instructions
- Versatile use for drinking, cleaning, and plant care
Cons
- Slower water production than advertised
Platform Trust & Buyer Confidence
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Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
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Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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TTD 2170
Order now and get it around Thursday, September 24
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Features & Benefits
- Removes 98% of chlorine and contaminants
- Wastes only 25% less than other RO systems
- Up to 300-gallon per day
- Automatic shut-off cartridge
- pH is 3-11
- Max feed flow rate is 2 GPM
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