---
product_id: 746325183
title: "Waterdrop T4-A Alkaline pH+ Reverse Osmosis Water Filter, Dual Flow, NSF/ANSI 372 Certified, 10-Stage, 450 GPD Tankless Undersink RO Filtration System, 2:1 Pure to Drain, BPA Free, Plug-in Required"
brand: "waterdrop"
price: "VT118736"
currency: VUV
in_stock: true
reviews_count: 8
category: "Waterdrop"
url: https://www.desertcart.vu/products/746325183-waterdrop-t4-a-alkaline-ph-reverse-osmosis-water-filter-dual
store_origin: VU
region: Vanuatu
---

# Smart filter life alerts 450 GPD ultra-fast flow Dual purified & alkaline streams Waterdrop T4-A Alkaline pH+ Reverse Osmosis Water Filter, Dual Flow, NSF/ANSI 372 Certified, 10-Stage, 450 GPD Tankless Undersink RO Filtration System, 2:1 Pure to Drain, BPA Free, Plug-in Required

**Brand:** waterdrop
**Price:** VT118736
**Availability:** ✅ In Stock

## Summary

> 💦 Elevate your hydration game with next-level purity and style!

## Quick Answers

- **What is this?** Waterdrop T4-A Alkaline pH+ Reverse Osmosis Water Filter, Dual Flow, NSF/ANSI 372 Certified, 10-Stage, 450 GPD Tankless Undersink RO Filtration System, 2:1 Pure to Drain, BPA Free, Plug-in Required by waterdrop
- **How much does it cost?** VT118736 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/746325183-waterdrop-t4-a-alkaline-ph-reverse-osmosis-water-filter-dual)

## Best For

- waterdrop enthusiasts

## Why This Product

- Trusted waterdrop brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tankless Space-Saver:** Compact design frees up 70% more under-sink space while preventing secondary contamination.
- • **Eco-Friendly Efficiency:** Industry-leading 2:1 pure to drain ratio reduces wastewater by up to 800% compared to traditional RO systems.
- • **Hassle-Free Maintenance:** LED indicators and buzzer alerts keep you ahead of filter replacements—never miss a change.
- • **Dual Flow, Dual Benefits:** Switch seamlessly between pure RO water and mineral-rich alkaline water for tailored hydration.
- • **10-Stage Precision Filtration:** Eliminates PFOA, PFOS, chlorine, heavy metals, and more for crystal-clear, great-tasting water.

## Overview

The Waterdrop T4-A is a cutting-edge, NSF/ANSI 372 certified 10-stage reverse osmosis system featuring dual flow for both purified and alkaline water. Delivering an impressive 450 gallons per day with a tankless design, it maximizes under-sink space and minimizes wastewater with a 2:1 pure-to-drain ratio. Smart filter life reminders and BPA-free materials ensure convenience and safety, making it the ultimate upgrade for health-conscious professionals seeking premium water quality.

## Description

Waterdrop T4-A Alkaline pH+ Reverse Osmosis Water Filter, Dual Flow, NSF/ANSI 372 Certified, 10-Stage, 450 GPD Tankless Undersink RO Filtration System, 2:1 Pure to Drain, BPA Free, Plug-in Required - desertcart.com

Review: WD-T4-A after installation - We bought the Waterdrop WD-T4-A Alkaline RO System a week ago and it has completely changed the quality of our drinking water. Installation was shockingly simple for a tankless RO system—I had it set up and running in under an 30 minutes, thanks to the clear instructions. ​The difference in taste is night and day. Our tap water was always heavily chlorinated, but this system removes that entirely. The alkaline feature is a huge bonus; the water tastes perfectly crisp and clean, almost better than expensive bottled water. ​The flow rate is also incredible; it fills a pitcher in no time, which is something older, tanked systems simply can't do. If you're looking for a compact, high-performance, and water-saving RO system, this is absolutely the one to get. Worth every penny!
Review: filtration quality; material quality; and price. - Honestly, it's a very good product; simple to install, very easy; it arrived in perfect condition with all the correct parts; and above all, the water filtration quality and taste are very good; the motor is extremely quiet; and the parts are of good quality; the indicator screen is a nice touch. Seriously, for this price you can't ask for better. I recommend it.

## Features

- [Dual Water Flow]: The WD-T4-A RO system offers two purified water options: a standard RO-purified stream and a mineral-enhanced alkaline stream. Switch between them effortlessly based on your needs — both deliver contaminant-reduced drinking water. Dual LED ensure complete water safety from filtration to faucet *NOTE: Faucet installation requires drilling holes in the countertop
- [10-Stage Filtration with RO Membrane]: This system reduces harmful substances, including PFOA & PFOS, chlorine, heavy metals, rust, colloids and more impurities, through its comprehensive filtration stages. The dedicated mineral-enriched line then infuses beneficial alkaline minerals, delivering healthier, great-tasting water. 𝐍𝐨𝐭𝐞: This system requires an electrical connection for operation
- [450GPD Flow & 2:1 Pure to Drain]: With a 450-gallon-per-day capacity and industry-leading 2:1 water-saving ratio, the WD-T4-A provides fast, on-demand purified water while reducing wastewater by up to 800% compared to traditional RO systems
- [Smart Filter Life Reminder]: You won't miss a filter change with the indicator lights and buzzer alerts. Replacement intervals: CF filter: 6 months; RO membrane: 24 months; CB filter: 12 months; Alkaline mineralizer: 12 months
- [Tankless Design]: The compact, tank-free system effectively avoids secondary contamination risks associated with water storage tanks, while freeing up 70% more under-sink space than traditional tank-based RO systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F5V9G355 |
| Best Sellers Rank | #13,526 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #26 in Under-Sink & Countertop Filtration |
| Brand Name | Waterdrop |
| Capacity | 450 Gallons |
| Customer Reviews | 4.5 4.5 out of 5 stars (110) |
| Included Components | Tankless RO ( CF Filter, CB Filter, ALK Filter, RO Filter ), Dual Flow Faucet |
| Item Dimensions L x W x H | 16.54"L x 6.22"W x 17.95"H |
| Item Weight | 10.98 Kilograms |
| Manufacturer | Waterdrop |
| Material Type | Reverse Osmosis |
| Model Name | WD-RT44D-WAD |
| Model Number | WD-RT44D-WAD |
| Other Special Features of the Product | Alkaline 450GPD Tankless RO, 10-Stage, NSF/ANSI 372 Certified, 2:1 Pure to Drain, Plug-in required |
| Part Number | WD-RT44D-WAD |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Waterdrop
- **Capacity:** 450 Gallons
- **Included Components:** Tankless RO ( CF Filter, CB Filter, ALK Filter, RO Filter ), Dual Flow Faucet
- **Item Weight:** 10.98 Kilograms
- **Manufacturer:** Waterdrop
- **Material:** Reverse Osmosis
- **Model Name:** WD-RT44D-WAD
- **Product Dimensions:** 16.54"L x 6.22"W x 17.95"H
- **Special Feature:** Alkaline 450GPD Tankless RO, 10-Stage, NSF/ANSI 372 Certified, 2:1 Pure to Drain, Plug-in required

## Images

![Waterdrop T4-A Alkaline pH+ Reverse Osmosis Water Filter, Dual Flow, NSF/ANSI 372 Certified, 10-Stage, 450 GPD Tankless Undersink RO Filtration System, 2:1 Pure to Drain, BPA Free, Plug-in Required - Image 1](https://m.media-amazon.com/images/I/719YgI8NGvL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ WD-T4-A after installation
*by A***I on October 26, 2025*

We bought the Waterdrop WD-T4-A Alkaline RO System a week ago and it has completely changed the quality of our drinking water. Installation was shockingly simple for a tankless RO system—I had it set up and running in under an 30 minutes, thanks to the clear instructions. ​The difference in taste is night and day. Our tap water was always heavily chlorinated, but this system removes that entirely. The alkaline feature is a huge bonus; the water tastes perfectly crisp and clean, almost better than expensive bottled water. ​The flow rate is also incredible; it fills a pitcher in no time, which is something older, tanked systems simply can't do. If you're looking for a compact, high-performance, and water-saving RO system, this is absolutely the one to get. Worth every penny!

### ⭐⭐⭐⭐⭐ filtration quality; material quality; and price.
*by D***O on March 3, 2026*

Honestly, it's a very good product; simple to install, very easy; it arrived in perfect condition with all the correct parts; and above all, the water filtration quality and taste are very good; the motor is extremely quiet; and the parts are of good quality; the indicator screen is a nice touch. Seriously, for this price you can't ask for better. I recommend it.

### ⭐⭐⭐⭐⭐ Perfect RO system for my home
*by T***S on March 1, 2026*

I’m really impressed with this purchase. The quality is excellent, everything works exactly as described, and it’s clear a lot of thought went into the design. It arrived well‑packaged, easy to set up, and has been completely reliable. It’s rare these days to buy something that just does what it’s supposed to do without any hassle. Highly recommend. I installed this in my basement mechanical room and ran a line to my upstairs refrigerator, water filling through the door is a little bit slower, but that is the price for ultra filtered water.

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**Shop now:** [https://www.desertcart.vu/products/746325183-waterdrop-t4-a-alkaline-ph-reverse-osmosis-water-filter-dual](https://www.desertcart.vu/products/746325183-waterdrop-t4-a-alkaline-ph-reverse-osmosis-water-filter-dual)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-06*