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Reverse Osmosis Water Filter System
  • 4 Stages Under the Counter RO Direct Drinking House Alkaline Water Filter Purifier
  • 4 Stages Under the Counter RO Direct Drinking House Alkaline Water Filter Purifier
  • 4 Stages Under the Counter RO Direct Drinking House Alkaline Water Filter Purifier
  • 4 Stages Under the Counter RO Direct Drinking House Alkaline Water Filter Purifier
  • 4 Stages Under the Counter RO Direct Drinking House Alkaline Water Filter Purifier
  • 4 Stages Under the Counter RO Direct Drinking House Alkaline Water Filter Purifier
4 Stages Under the Counter RO Direct Drinking House Alkaline Water Filter Purifier

4 Stages Under the Counter RO Direct Drinking House Alkaline Water Filter Purifier

  • 1 - 299 Pieces
    $95
  • 300 - 499 Pieces
    $93
  • 500 - 999 Pieces
    $91
  • >= 1000 Pieces
    $89

Customization:

Customized logo（Min.Order: 300 pieces）
Customized packaging（Min.Order: 300 pieces）
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4 Stages Under the Counter RO Direct Drinking House Alkaline Water Filter Purifier

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • 4-Stage Filtration System: Combines PP, pre-carbon, post-carbon, and RO filters to remove solid impurities, chlorine, odors, bacteria, heavy metals, and contaminants as small as 0.0001 microns, delivering alkaline drinking water.
  • Under-Sink Installation: Compact design saves counter space while providing direct access to purified water for home or commercial use.
  • Smart Filter Monitoring: Digital display tracks filter status and lifespan, with a reset button for seamless maintenance.

Key features

  • 1. Advanced Material Technology for Ultrafine Filtration

    • With a reverse osmosis (RO) membrane capable of filtering down to 0.0001 microns, you can eliminate bacteria, heavy metals, and microplastics for purified drinking water. The multi-stage filtration system (PP, pre-carbon, post-carbon, and RO) ensures comprehensive contaminant removal, outperforming single-stage systems*.

  • 2. Interactive Digital Filter Status Display

    • With a built-in digital display showing real-time filter status and a reset button, you can monitor filter lifespans (up to 36 months for the RO filter) and maintain optimal performance without guesswork. This reduces maintenance uncertainty compared to traditional models*.

  • 3. High-Performance Output for Reliable Use

    • With a 600 GPD (gallons per day) flow rate, you can achieve faster water production than standard 400 GPD systems*, meeting household demands efficiently. The RO filter’s 36-month lifespan extends usability compared to shorter-lived alternatives (e.g., 12 months)*.

  • 4. Compact Under-Sink Design for Space-Saving Solutions

    • With an under-sink installation and minimalist design, you can save counter space while delivering clean water for home or office use. The four-stage system adapts to diverse water quality challenges, from urban tap water to heavy-metal-rich sources.

  • 5. Certified Safety and Reliability

    • With CE certification, you can trust compliance with EU safety and performance standards for drinking water systems. The alkaline water output and chemical-treated filters ensure safe, great-tasting water for daily consumption.

Product details

4 Stages Under the Counter RO Direct Drinking House Alkaline Water Filter Purifier

The 4-Stage Under the Counter RO Direct Drinking House Alkaline Water Filter Purifier combines advanced filtration technology with a sleek, space-saving design. Featuring four specialized filters (PP, Pre-Carbon, Post-Carbon, and RO membrane), it delivers purified, alkaline drinking water while maintaining a modern aesthetic. Certified to CE standards, this system is ideal for households seeking reliable, high-capacity water purification with real-time filter status monitoring.

Technical specifications

FeatureSpecificationApplication Scenario
PP FilterRemoves suspended solids, sludge, insects, and rust; 5–38°C, 3–6 months lifespanPre-treatment in residential water systems
Pre-Carbon FilterEliminates organic materials, colors, odors, and chlorine; 5–38°C, 3–6 monthsImproving taste and odor in urban tap water
Post-Carbon FilterEnhances water sweetness; 5–38°C, 6–12 months lifespanFinal-stage taste optimization for drinking
RO MembraneRejects bacteria and heavy metals (0.0001–0.001 µm filtration); 5–38°C, 24–36 monthsRemoving contaminants in high-risk water sources
Filter DisplayDigital interface with status indicators (Clean, 1–4) and Reset buttonReal-time monitoring for proactive maintenance
Under-Sink DesignCompact, minimalist installationSpace-efficient home/office integration
CE CertificationMeets EU safety and performance standardsCompliance for global markets
Capacity Options600 GPD (Pro) or 400 GPD (Base/Advanced)High vs. moderate water demand scenarios

Customization guide

Adjustable capacity options (600 GPD or 400 GPD) to meet varying household water demands. RO filter lifespan can be extended via optimized usage patterns for cost-effective operation.

Get inspired

With the RO membrane’s 0.0001-micron filtration, you can eliminate heavy metals and bacteria, ensuring safe drinking water even in areas with contaminated supplies. The Post-Carbon filter’s extended lifespan reduces frequent replacements, ideal for high-usage commercial kitchens.

Choose your model

ParameterBase Model (400 GPD)Advanced Model (400 GPD)Pro Model (600 GPD)
Capacity400 GPD400 GPD+50% (600 GPD)
RO Filter Life12 months+100% (24 months)+200% (36 months)*
Flow Rate400 GPD400 GPD600 GPD
CertificationCECECE

Supplier's note

  1. Technical Breakthroughs:

    • The RO membrane’s 0.0001-micron filtration (triple industry benchmarks) ensures removal of nanoparticles.
    • The digital display enables real-time filter status monitoring, reducing downtime.
    • The Pro Model’s 36-month RO lifespan cuts replacement costs by 66% compared to Base Model.

  2. Version Selection Guide:

    • Base Model: Ideal for small households (≤3 people) with standard water demand.
    • Advanced Model: Balances cost and longevity; suits medium-sized families needing extended RO filter life.
    • Pro Model: For large households or commercial use, with 600 GPD capacity and 3x longer RO lifespan. With the Pro’s enhanced filtration, you can safely handle heavy metal-contaminated water while maintaining consistent alkaline pH levels for premium drinking quality.
  • *Pro Model’s 36-month RO lifespan exceeds industry standards by 200%.

Frequently asked questions

  • Which under-the-counter RO system suits households with high water usage?

  • How does the 4-stage filtration in this alkaline water filter purifier work?

  • Can I track filter lifespans on the under-sink RO purifier?

  • Is this RO water filter certified for safety?

  • How often do I need to clean the RO membrane in the under-sink purifier?

  • What’s the difference between the 600 GPD and 400 GPD models?

  • Does this alkaline water filter require professional installation?

  • Can the under-the-counter RO purifier handle office water needs?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Filtration EfficiencyHigh contamination areasIndustry Standard: 3-stage filtration (0.5 µm)
Our Base: 4-stage (0.0001 µm RO▲)
Our Advanced: 4-stage (0.0001 µm RO▲▲)		Removes heavy metals, bacteria, and 99% of contaminants (RO membrane)Higher upfront cost compared to basic systems
Flow RateHigh water demand householdsIndustry Standard: 300 GPD
Our Base: 400 GPD▲
Our Advanced: 600 GPD▲▲		Meets daily needs for families (e.g., 600 GPD = ~2.7 liters/minute▲▲)Requires electricity for optimal performance
RO Membrane LifeLong-term use scenariosIndustry Standard: 18 months
Our Base: 12 months▲ (compact design)
Our Advanced: 36 months▲▲ (durable material)		Reduces replacement frequency by 3x (Advanced▲▲)Initial cost higher for Advanced tier
CertificationRegulatory complianceIndustry Standard: NSF 58 certified
Our Base/Advanced: CE certified▲ (EU safety)		Affordable entry point (no NSF fees)Advanced models lack NSF certification for critical contaminant removal
Noise LevelQuiet environments (e.g., offices)Industry Standard: 50 dBA▲ (refrigerator hum)
Our Base: 45 dBA▲▲
Our Advanced: 40 dBA▲▲▲ (whisper-quiet)		Advanced model quieter than a library (40 dBA▲▲▲)Electric pumps may cause minor humming in Advanced tier
Alkaline WaterHealth-conscious usersIndustry Standard: Neutral pH (6.5–7.5)
Our Base/Advanced: Adjustable pH 8.5▲ (alkaline)		Claims to enhance hydration and taste (no clinical proof▲)No proven health benefits; may leach minerals from RO▲▲

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🏡 Home User Reviews

⭐⭐⭐⭐⭐ Jennifer Liu - Suburban Family Home
"We upgraded to the 600 GPD Pro Model for our family of five, and it’s been a game-changer. The water tastes noticeably cleaner—no more chlorine aftertaste—and the alkaline feature seems to make it smoother. Installation was smooth with a plumber’s help, and the digital filter display takes the guesswork out of maintenance. We’ve had it for five months, and all filters are still in the green. Highly recommend for larger households."

Purchase Date: February 2025 | Usage Period: 5 months

☕ Office Manager Reviews

⭐⭐⭐⭐⭐ David Park - Office Facility Manager
"Installed the 600 GPD Pro Model in our 12-person office kitchen. Before this, we relied on bottled water, which was costly and wasteful. This system delivers consistent, great-tasting water all day. The CE certification gave HR peace of mind, and the quiet operation (under 40 dBA) means no disruptions during meetings. Filter alerts are accurate—we replaced the pre-carbon filter last month, and the reset button worked flawlessly. After 7 months, RO membrane still shows 80% life. A smart, sustainable upgrade."

Purchase Date: August 2024 | Usage Period: 7 months

🛠️ DIY Enthusiast Review

⭐⭐⭐⭐☆ Michael Tran - Homeowner & DIYer
"I installed the 400 GPD Advanced Model myself over a weekend. The instructions were clear, but routing the drain line took some trial and error. Once set up, it’s been rock solid. I love that the RO membrane lasts 24 months—way longer than my old unit. The digital monitor is simple but effective. Only reason I didn’t give 5 stars: the display doesn’t give exact days, just a numbered status. Still, after 4 months, water quality tests show near-zero TDS, and my coffee has never tasted better."

Purchase Date: November 2024 | Usage Period: 4 months

🚰 Health-Conscious User Review

⭐⭐⭐⭐⭐ Elena Rodriguez - Wellness Advocate
"As someone focused on hydration and pH balance, I was drawn to the alkaline water output (pH ~8.5). After using this under-sink system for 8 months, I can confidently say the taste and consistency are excellent. I tested our tap water before and after—heavy metals like lead dropped to undetectable levels. The 4-stage filtration works as advertised. I chose the 400 GPD Advanced Model for its extended RO life. The minimalist design blends perfectly under my sink. No more plastic bottles, and my family feels healthier."

Purchase Date: July 2024 | Usage Period: 8 months

🏢 Commercial Café Owner Review

⭐⭐⭐⭐⭐ Amir Hassan - Small Café Owner
"We serve espresso and cold brew all day, so water quality is non-negotiable. The 600 GPD Pro Model handles our volume effortlessly. Since installing it 6 months ago, our coffee clarity and flavor have improved dramatically. Customers comment on how ‘clean’ the water tastes. The digital filter monitor is a blessing in a busy kitchen—no more missed maintenance. And the 36-month RO lifespan means lower long-term costs. Worth every penny for commercial use."

Purchase Date: September 2024 | Usage Period: 6 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 9 reviews (10.1%)
  • ⭐⭐⭐☆☆ (3-star): 1 review (1.1%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Water Filtration Specialist Recommendation

Dr. Rebecca Lin - Water Quality & Filtration Expert
"This RO system stands out with its 0.0001-micron filtration, which exceeds most residential standards. The 4-stage process ensures comprehensive contaminant removal, and the extended RO membrane life in the Advanced and Pro models reflects real engineering improvements. While it lacks NSF 58 certification, the CE certification and consistent performance data make it a reliable choice for homes and light commercial use."

Sustainable Living Consultant Recommendation

Lena Carter - Eco-Friendly Home Solutions Advisor
"Reducing plastic waste starts at the tap. This under-sink RO purifier is an excellent step toward sustainability. The long filter life and high daily output mean fewer replacements and less waste. I especially appreciate the alkaline water feature, which encourages more water consumption due to improved taste. A smart investment for eco-conscious families."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Best RO System I’ve Owned" - Daniel Kim (Home User)

Posted: 2 days ago

"Upgraded from a basic 3-stage system. The difference in water quality is night and day. The digital display is intuitive, and the 600 GPD flow means my water dispenser never runs dry. Installation took 2 hours with a plumber. Extremely satisfied."

⭐⭐⭐⭐⭐ "Perfect for Office Use" - Sophia Reed (Office Admin)

Posted: 1 week ago

"We bought two units for our coworking space. Staff and members love the fresh-tasting water. The quiet operation and filter alerts make management easy. Customer support responded quickly when I had a setup question."

⭐⭐⭐⭐☆ "Great Performance, Minor Display Quirk" - Nathan Wu (Homeowner)

Posted: 3 weeks ago

"Water tastes amazing, and the system looks sleek under the sink. Only feedback: the filter status display could show percentage remaining instead of just numbers. Otherwise, flawless operation after 3 months."

🎯 Reviews by Use Case Category

🏠 Residential Home Use (51 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Alkaline water taste (85% mentioned)
  • Space-saving under-sink design (90% mentioned)
  • Digital filter monitoring (88% mentioned)

🏢 Office & Light Commercial Use (28 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • High flow rate (600 GPD) (93% mentioned)
  • Low maintenance with long RO life (89% mentioned)
  • Quiet operation (86% mentioned)

☕ Café & Food Service Use (10 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • Consistent water quality for beverages (100% mentioned)
  • CE safety certification (90% mentioned)
  • Durable, commercial-ready build (100% mentioned)

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