Waterdrop T4-A 450GPD Alkaline Dual Flow Reverse Osmosis System

About this product

Ultimate Upgrade of RO System Enjoy better-tasting & instant pure water and user-friendly designs from now! Get Better-Tasting Instant Pure Water Save More Space All-in-one Cartridge Dual-Flow Alkaline RO System Enjoy clean RO water for safe drinking and alkaline water that helps balance body, improve digestion, and keep you hydrated — all in one system. Dual Flow, Dual UV Sterilizer — Always Safe Drinking You're covered on every sip — Waterdrop's dual-flow RO system gives you double protection, with a UV sterilizer built into each line. Auto-Flush RO System, Smarter & Fresher Waterdrop WD-T4-A keeps your water fresh at all times, ensuring a consistently great taste. 2:1 Pure to Drain, Saves 800% Water Waterdrop T4-A — your choice for water & environmental savings Compare T Series Compare T Series T4-A Add to Cart T3-M Add to Cart T3-C Add to Cart Flow Rate Flow Rate 450 GPD 450 GPD 450 GPD Alkaline Mineralization Alkaline Mineralization √ √ × Pure to Drain Rate Pure to Drain Rate 2:1 2:1 2:1 Filtration Stages Filtration Stages 10 Stages 9 Stages 8 Stages Warranty Warranty 1 Years 1 Years 1 Years Certification Certification NSF/ANSI 372 NSF/ANSI 372 NSF/ANSI 372 Dimensions (inch) Dimensions (inch) 16.54*6.22*17.95 16.54*6.22*17.95 16.54*6.22*17.95 Item Weight Item Weight 24.25 Pounds 20.06 Pounds 19.6 Pounds FAQ Curious about how the countertop water filter works? Our FAQ section covers everything from filter lifespan to installation tips for clean, pure water every day. Contact Us How does the dual-flow feature benefit me? You can switch instantly between standard RO-purified water for everyday drinking and an alkaline stream that adds beneficial minerals, perfect for coffee, tea, or anyone who prefers a smoother taste profile. Does the system keep water hygienic after filtration? Yes. Each water line has its own UV LED sterilizer that continuously disinfects the water as it leaves the filter, safeguarding freshness all the way to the faucet. Does it require a storage tank? No. The compact, tankless design prevents secondary contamination and frees up about 70 % more under-sink space compared with tank-based RO systems. Is installation complicated? No! The tank-free design make under-sink installation straightforward for most homeowners — no bulky tank to position or maintain. Will the alkaline stream affect beverage flavor? Yes — positively. The mineral-enhanced line can improve the taste and aroma of coffee, tea, and cooking water while still delivering contaminant-reduced purity. MORE CLOSE

• Dual flow system offers both RO purified and alkaline mineral water for versatile hydration needs
• Integrated dual UV sterilizers on each line ensure continuous water disinfection for safety
• 10-stage filtration reduces contaminants and adds healthy alkaline minerals for improved taste
• Tankless, under-sink design saves up to 70% space and prevents secondary contamination
• Smart filter reminder alerts and auto-flush system maintain optimal performance and water freshness

Flow Rate

450 GPD (gallons per day)

Filtration Stages

10

Pure to Drain Ratio

2:1

Filtration Stages

10

Certification

NSF/ANSI 372

Dimensions

16.54 x 6.22 x 17.95 inches

Item Weight

24.25 pounds

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