---
product_id: 579701822
title: "SimPure Tankless Alkaline Reverse Osmosis System, Under Sink RO Water Filter System 400GPD, 1.5:1 Pure to Drain, Built-in Booster Pump (T1-400ALK)"
brand: "simpure"
price: "€ 861.23"
currency: EUR
in_stock: true
reviews_count: 5
category: "Sim Pure"
url: https://www.desertcart.it/products/579701822-simpure-tankless-alkaline-reverse-osmosis-system-under-sink-ro-water
store_origin: IT
region: Italy
---

# Built-in booster pump 400 GPD ultra capacity 1.5:1 pure-to-drain efficiency SimPure Tankless Alkaline Reverse Osmosis System, Under Sink RO Water Filter System 400GPD, 1.5:1 Pure to Drain, Built-in Booster Pump (T1-400ALK)

**Brand:** simpure
**Price:** € 861.23
**Availability:** ✅ In Stock

## Summary

> 💧 Pure water, zero compromises — upgrade your hydration game today!

## Quick Answers

- **What is this?** SimPure Tankless Alkaline Reverse Osmosis System, Under Sink RO Water Filter System 400GPD, 1.5:1 Pure to Drain, Built-in Booster Pump (T1-400ALK) by simpure
- **How much does it cost?** € 861.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/579701822-simpure-tankless-alkaline-reverse-osmosis-system-under-sink-ro-water)

## Best For

- simpure enthusiasts

## Why This Product

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

## Key Features

- • **Next-Level Purity:** Removes 99.99%+ contaminants including PFAS, heavy metals, microplastics—drink with confidence.
- • **Eco-Friendly Efficiency:** 1.5:1 pure-to-drain ratio drastically reduces water waste compared to traditional RO systems.
- • **Advanced UV Sterilization:** Automatically kills bacteria and algae for safer, fresher water every time you turn on the tap.
- • **Space-Smart Tankless Design:** Saves under-sink space and prevents secondary contamination with fresh water on demand.
- • **Trusted American Craftsmanship:** Proudly serving since 2006 with dedicated US-based support and NSF/ANSI 58 certification.

## Overview

The SimPure Tankless Alkaline Reverse Osmosis System delivers up to 400 gallons of ultra-purified alkaline water daily with a highly efficient 1.5:1 pure-to-drain ratio. Featuring NSF/ANSI 58 certification, built-in booster pump, and advanced UV sterilization, this under-sink system removes over 99.99% of contaminants including PFAS, heavy metals, and microplastics. Its tankless design saves space and prevents secondary contamination, making it a smart, eco-conscious choice for modern homes.

## Description

SimPure Tankless Alkaline Reverse Osmosis System, UV Under Sink RO Water Filter System 400GPD, 1.5:1 Pure to Drain, Built-in Booster Pump (T1-400ALK)

Review: Je l’es depuis plusieurs mois et satisfait j’ai installer des lecteurs de ppm entre tout les filtres et je soupçonne seulement le premier de faire une moin bon travaille a moin que mes lecteurs manque de précision je vais revenir plus tard ici a
Review: I am definitely not used to the taste of the water and water measurements are harder to do with this system as it is adding minerals back into the water. (Tempted to order that post carbon filter as I hear others have contemplated this to get closer to a 0 PPM reading). Also, one BIG issue I found with this system was that the spout was NOT deep enough a length for my countertop... luckily I was replacing an older system so I used that spout. It should come with an extension at least. Other notes... it's not noisy per say but pump does make noise. Filters and hardware are straightforward enough for most DIY'rs. Pressure gauge display is a nice touch.

## Features

- 💧 CERTIFIED and TESTED BY SGS - Meets the NSF/ANSI 58 Standard. The Simpure ROULP-3012-400-T1 by NSF International against NSF/ANSI Standard 58 for material requirements, ensuring its quality and performance. The RO water filtration system is designed to remove over 99.99% of the 1000+ contaminants including viruses, bacteria, chemicals(PFAS/PFOA/PFOS, Pharmaceuticals), heavy metals (Lead, Arsenic, etc), TDS(Nitrates/Nitrites), chloride, fluoride, microplastics, and more. With this comprehensive filtration, you can enjoy cleaner and safer drinking water. Say goodbye to the hassle and expense of purchasing single-use plastic bottles.
- 💧 ALKALINE
- 💧 UV STERILIZER & TANKLESS DESIGN - Our UV sterilization system eliminates bacteria, algae, and other microorganisms from your tap water with an impressive removal rate of over 99.99%. It operates automatically based on water flow pressure and can be easily adjusted. The tankless design ensures fresh and clean water, while also saving valuable under-sink space and preventing secondary contamination.
- 💧 400 GPD & 1.5:1 PURE to DRAIN - The SimPure tankless RO system can produce up to 400 gallons per day of pure water. With a remarkable 1.5:1 pure-to-drain ratio, it minimizes wastage by only producing 1 gallon of wastewater for every 1.5 gallons of pure water. Experience superior efficiency and eco-friendliness compared to traditional RO systems.
- 💧 ERVING USA SINCE 2006 - Seattle, WA USA, SimPure is dedicated to providing world-class quality water filtration solutions. If you are not satisfied with your purchase, then we want to hear from you. Please contact our trained water specialists. And is available to answer any questions during the life of the product. (Please scroll down for replacement filter purchase options).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C9ZB7WRS |
| Best Sellers Rank | #99,333 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #227 in Under-Sink Water Filters |
| Item model number | T1-400ALK |
| Manufacturer | SimPure |
| Product Dimensions | 39.62 x 13.46 x 39.88 cm; 8 kg |

## Product Details

- **Brand:** SimPure
- **Capacity:** 400 G/day
- **Material:** Plastic
- **Product dimensions:** 39.6L x 13.5W x 39.9H centimeters
- **Special features:** Alkaline Pure Water, Built-in Booster Pump, Built-in Pressure Gauge, Tankless, UV Sterilization

## Images

![SimPure Tankless Alkaline Reverse Osmosis System, Under Sink RO Water Filter System 400GPD, 1.5:1 Pure to Drain, Built-in Booster Pump (T1-400ALK) - Image 1](https://m.media-amazon.com/images/I/71Q3REHV3tL.jpg)
![SimPure Tankless Alkaline Reverse Osmosis System, Under Sink RO Water Filter System 400GPD, 1.5:1 Pure to Drain, Built-in Booster Pump (T1-400ALK) - Image 2](https://m.media-amazon.com/images/I/71J6Ace3aBL.jpg)
![SimPure Tankless Alkaline Reverse Osmosis System, Under Sink RO Water Filter System 400GPD, 1.5:1 Pure to Drain, Built-in Booster Pump (T1-400ALK) - Image 3](https://m.media-amazon.com/images/I/71CGcxDf70L.jpg)
![SimPure Tankless Alkaline Reverse Osmosis System, Under Sink RO Water Filter System 400GPD, 1.5:1 Pure to Drain, Built-in Booster Pump (T1-400ALK) - Image 4](https://m.media-amazon.com/images/I/71pNRENxSoL.jpg)
![SimPure Tankless Alkaline Reverse Osmosis System, Under Sink RO Water Filter System 400GPD, 1.5:1 Pure to Drain, Built-in Booster Pump (T1-400ALK) - Image 5](https://m.media-amazon.com/images/I/71V4wvleNjL.jpg)

## Questions & Answers

**Q: what's the voltage of the pump? Can it be connected directly to a 12 or 24V system?**
A: The connection voltage is 110 volts AC .I do not recall seeing a transformer for changing voltage to DC.

**Q: how much room does it take up under the counter?**
A: The system dimension is 15.9"w x 5.2"d x 15.6"h, my system is underneath a country sink, which has the minimum space underneath of any sink that I am aware of & it fits just fine with a little resourcefulness.

**Q: where is this product made?  country of origin**
A: I have no idea but assuming in China.

**Q: Can I add a bladder tank?  Any issues with doing so?  I have a well and would like to have water if the power goes out.**
A: No this system was designed to be tankless, the pump would add too much pressure

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***S on 10 September 2025*

Je l’es depuis plusieurs mois et satisfait j’ai installer des lecteurs de ppm entre tout les filtres et je soupçonne seulement le premier de faire une moin bon travaille a moin que mes lecteurs manque de précision je vais revenir plus tard ici a

### ⭐⭐⭐⭐ Review
*by H***M on 20 August 2024*

I am definitely not used to the taste of the water and water measurements are harder to do with this system as it is adding minerals back into the water. (Tempted to order that post carbon filter as I hear others have contemplated this to get closer to a 0 PPM reading). Also, one BIG issue I found with this system was that the spout was NOT deep enough a length for my countertop... luckily I was replacing an older system so I used that spout. It should come with an extension at least. Other notes... it's not noisy per say but pump does make noise. Filters and hardware are straightforward enough for most DIY'rs. Pressure gauge display is a nice touch.

### ⭐⭐⭐⭐⭐ Review
*by I***I on 28 February 2026*

After one week of use, I’d like to share my experience and explain why I chose this particular reverse osmosis system over others. There were two main reasons for my decision: 1. Filter flexibility (ALK to T33 option). This model allows you to replace the Alkaline (ALK) filter with a T33 carbon filter if needed. I wasn’t completely sure whether I would prefer alkaline water long term. With this system, I can simply swap one filter and get 0 ppm water if I choose. That flexibility was very important to me. 2. NSF certification. This system has internationally recognized NSF certification, which can be easily verified on the official NSF website. Unlike some brands that only pay for one-time testing, this certification provides ongoing credibility. For me, that really matters when it comes to water quality and safety. Packaging & Installation: Everything arrived well packaged and protected. The box includes many additional fittings for different installation scenarios — various tubing sizes and even the option to connect the system to a refrigerator. The instructions are clear and detailed. Installation took about 1.5 hours. The most difficult part was drilling a hole in the countertop for the faucet. I had to buy a diamond drill bit for that. My advice: buy a good-quality bit and watch a YouTube tutorial before drilling. I was surprised to learn that: 1. You need to keep the drill bit wet while drilling. 2. You should start drilling at a 45-degree angle. The unit itself is compact and doesn’t take much space under the sink. Water Quality Results Before installation, my tap water measured 176 ppm. After installation, it measured 70 ppm, because the ALK filter adds beneficial minerals back into the water. After one week, I performed a 14-parameter water test with the following results: Hardness: 50 Chlorine: 0 Iron: 0 Copper: 0 Nitrate: 0 Nitrite: 0 Calcium: 0 Total Chlorine: 0 Fluoride: 0 Alkalinity: 40 Carbonate: 180 pH: 7.5 Lead: 0 Bacteria: 0 Overall, the results are very reassuring. What I Would Improve I would like to see better filter replacement indicators. The current system for tracking filter life is not very informative. A clearer indicator or built-in reminder would improve the user experience. Overall Impression I am satisfied with this purchase. We drink this water daily, cook with it, and wash food with it. So far, the system performs as expected and gives me confidence in our water quality.

## Frequently Bought Together

- SimPure Alkaline UV Reverse Osmosis System, NSF/ANSI 58 Certified, Tankless RO Water Filter System 400 GPD, pH+ Remineralization Water Filtration Under Sink, BPA Free, Built-in Pump
- SimPure Small Water Pressure Tank for Tankless Reverse Osmosis System, RO Water Storage Tank with Fittings for Refrigerator, Ice Maker, Suitable for 1/4" and 3/8" Water Pipes
- SimPure T1-400ALK 1-Year Replacement Filter Cartridge Pack Set for T1-400ALK Tankless Reverse Osmosis Water Filter System (2*PP Filter+2*CTO Filter+1*RO Filter+2*ALK Filter)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-22*