---
product_id: 471043944
title: "SimPure T1-400UV Tankless Reverse Osmosis System with UV, NSF/ANSI 58 Certified, Under Sink RO Water Filter System 400 GPD, 8 Stage Filtration Near 0 TDS, Built-in Pump, BPA Free, 1.5:1 Pure to Drain"
brand: "simpure"
price: "228.46 OMR"
currency: OMR
in_stock: true
reviews_count: 8
category: "Sim Pure"
url: https://www.desertcart.com.om/products/471043944-simpure-t1-400uv-tankless-reverse-osmosis-system-with-uv-nsf
store_origin: OM
region: Oman
---

# Built-in UV sterilization 400 GPD ultra-fast flow NSF/ANSI 58 certified purity SimPure T1-400UV Tankless Reverse Osmosis System with UV, NSF/ANSI 58 Certified, Under Sink RO Water Filter System 400 GPD, 8 Stage Filtration Near 0 TDS, Built-in Pump, BPA Free, 1.5:1 Pure to Drain

**Brand:** simpure
**Price:** 228.46 OMR
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with pure, fresh water on demand — no compromises, just clarity.

## Quick Answers

- **What is this?** SimPure T1-400UV Tankless Reverse Osmosis System with UV, NSF/ANSI 58 Certified, Under Sink RO Water Filter System 400 GPD, 8 Stage Filtration Near 0 TDS, Built-in Pump, BPA Free, 1.5:1 Pure to Drain by simpure
- **How much does it cost?** 228.46 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/471043944-simpure-t1-400uv-tankless-reverse-osmosis-system-with-uv-nsf)

## 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

- • **UV-Powered Safety:** Automatic UV sterilization kills microbes on demand, ensuring next-level water security.
- • **Eco-Efficient Flow:** 1.5:1 pure-to-drain ratio slashes water waste, saving resources and your bills.
- • **Tankless & Space-Savvy:** Sleek under-sink design frees up valuable kitchen real estate with no bulky tank.
- • **Effortless Filter Swaps:** Quick-change cartridges deliver over 1000 gallons of premium water without hassle.
- • **Pure Water, Zero Compromise:** Near 0 TDS filtration removes 99.99%+ contaminants for crystal-clear hydration.

## Overview

The SimPure T1-400UV is a premium tankless reverse osmosis system delivering up to 400 gallons per day of near-zero TDS water. Certified to NSF/ANSI 58 standards and equipped with an 8-stage filtration process including UV sterilization, it removes over 99.99% of contaminants like heavy metals, PFAS, and nitrates. Its compact, tankless design saves under-sink space while a built-in pump ensures consistent flow. With an eco-friendly 1.5:1 pure-to-drain ratio and easy filter replacements, it offers a sustainable, cost-effective upgrade for millennial professionals seeking clean, great-tasting water and a healthier lifestyle.

## Description

SimPure T1-400UV Tankless Reverse Osmosis System with UV, NSF/ANSI 58 Certified, Under Sink RO Water Filter System 400 GPD, 8 Stage Filtration Near 0 TDS, Built-in Pump, BPA Free, 1.5:1 Pure to Drain - desertcart.com

Review: Best Tasting Water ! - I recently installed this tankless under-sink RO system, and it’s been a fantastic upgrade for my home water quality. The multi-stage filtration removes a wide range of contaminants while the alkaline remineralization adds back beneficial minerals for better taste and balanced pH. The built-in UV sterilization gives extra peace of mind by helping to eliminate microbes, and the compact, tankless design saves precious space under the sink. Setup was fairly straightforward, and daily use delivers clean, great-tasting water on demand. A highly effective and efficient choice for anyone serious about pure drinking water
Review: Honest Review - I purchased this system close to 1.5 years ago and I have to say I love the quality of water it produces, the simplicity to replace filters as needed, the tankless feature, and the efficiency in term of waste water versus drinkable water which is 1.5:1 respectively. My city water is TDS is around 270ppm and after I used the simpure T1-400UV, it reduced it to 0ppm for the first 6 months then after it remained steady around 10-14ppm after 1.5 years and on. This is extremely clean per RO standards which is usually around anything less than 100ppm. The tankless feature has the major benefit of saving a ton of under-sink storage space which is already limited from the start. However tankless feature requires the user to flush the system every time for 1-2 minutes if it has not been used for an extended amount of time since the "still dirty" water is mixing with the clean water in the tank due to equilibrium. For the first 1-2 minutes of flushing, the TDS of my water is 50-120ppm then after 2 minutes it stays at 13ppm (1.5 years age of filters). If you always want instant clean water than a RO system with tank is needed. This system can produce unlimited clean RO water on demand once set up without running out as systems with tanks do. After 1.5 years of heavy use, I encountered an issue where the system turns off intermittently. I contacted Simpure and they were very helpful and accommodating even though my 1 year warranty has passed. It turns out from sending them videos that my control box was faulty which they sent me a new one and I replaced (5 minute job) and the system works like it was brand new again. Ellen was the Simpure rep that reached out to me and she was very patient and understanding. Very appreciative of her helpfulness and follow ups. Installing this RO system if very DIY if you watch videos on youtube. Or hire a professional which would cost $$$. Using this system has definitely eliminated plastic/aluminum waste from my home and the water quality is far superior to bottled water now per TDS measurements. Can use RO water for cooking, fish tanks, or carbonated water machines. Below you can see my city water which is around 270ppm , SimPure reduces this number to 13ppm which is extremely clean water. After installation it sits flush against the wall so you have plenty of space under the sink still. Overall I would highly recommend anyone to get this if they are looking for a efficient space saving RO system.

## Features

- SGS CERTIFIED and TESTED: Against the NSF/ANSI 58 Standard. The SimPure ROULP-3012-400-T1 has been verified and tested by SGS, this ensures its exceptional quality and performance. It effectively removes over 99.99% of 1000+ contaminants, including TDS (fluoride, nitrates/nitrites), PFAS/PFOA/PFOS, heavy metals (lead and arsenic), chloride, etc. Enjoy purified drinking water with confidence and say goodbye to the hidden dangers of tap water
- Filtered WATER NEAR 0 TDS: The water filter system utilizes exclusive technology to achieve near 0 TDS (Total Dissolved Solids), making it one of the most effective RO water purifier systems. It is designed to efficiently reduce TDS levels in tap water, even with initial levels as high as 200-500 PPM, to near 0 PPM or below 25 PPM. With a TDS removal rate of up to 95% and a maximum rate of 99.99%, you can trust that T1-400UV will provide you with drinking water possible
- UV POWER & TANKLESS DESIGN: UV power offers you extra reliable. It operates automatically based on water flow pressure and can be easily adjusted. The tankless design ensures fresh and clear 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 clear 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 clear water. Experience superior efficiency and elevated lifestyle compared to traditional RO systems
- EFFORTLESS HYDRATION & COST-EFFECTIVE: The SimPure T1-400 Series water purifier comes with a complete set of quick-change twist filter cartridges that deliver 1057 gallons of purified water (equivalent to around 8000 bottled water). Embrace a sustainable way of living, cut down on plastic waste, and save cash. It's more than just purified water - it's an enhanced lifestyle, where every sip signifies the purity and sustainability it brings
- Serving the USA Since 2006: Based in Seattle, WA, SimPure is committed to delivering world-class water filtration solutions. If you’re not satisfied with your purchase, we want to hear from you! Reach out to our team of trained water specialists—we’re here to answer your questions and provide support for the lifetime of your product. (Please scroll down for replacement filter purchase options)
- NOTE: If you enjoy filtered water with a low TDS value, we recommend getting the SimPure T1-400UV reverse osmosis water filter. This system delivers clear water with a TDS level close to 0 ppm if your tap water has a measurement below 200 ppm. If you prefer alkaline water, consider the SimPure T1-400ALK RO system. This filter enhances the pH level of filtered water by incorporating minerals through the alkaline filter and please know that the TDS value will not reach 0 ppm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B14TM99T |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #17,937 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #40 in Under-Sink & Countertop Filtration |
| Brand | SimPure |
| Color | white |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,382) |
| Date First Available | May 12, 2022 |
| Installation Type | Under Sink |
| Item Package Quantity | 1 |
| Item Weight | 17.75 pounds |
| Item model number | T1-400 |
| Lower Temperature Rating | 41 Degrees Fahrenheit |
| Manufacture Year | 2021 |
| Manufacturer | SimPure |
| Maximum Flow Rate | 0.27 Gallons Per Minute |
| Model Name | T1-400UV |
| Operating Pressure Range | 14.5-116 PSI |
| Package Information | Under Sink RO Water Filter System T1-400UV |
| Part Number | T1-400UV |
| Power Source | Ac |
| Product Dimensions | 15.6"L x 5.3"W x 15.7"H |
| Size | 8 Stages |
| Special Feature | Filtered Water Near 0 TDS |
| Special Features | Filtered Water Near 0 TDS |
| Style | Near 0 TDS Water (T1-400UV) |
| Supported Water TDS Level Maximum (PPM) | 500 |
| Upper Temperature Rating | 100 Degrees Fahrenheit |

## Product Details

- **Brand:** SimPure
- **Capacity:** 400 G/day
- **Included Components:** 1*T1-400UV Unit, 1* PP/CTO/RO/T33 filter, 1*faucet, 1*user manual, 1*sparing kit
- **Installation Type:** Under Sink
- **Material:** BPA-Free Food Grade Material
- **Package Information:** Under Sink RO Water Filter System T1-400UV
- **Power Source:** Ac
- **Product Dimensions:** 15.6"L x 5.3"W x 15.7"H
- **Purification Method:** Reverse Osmosis, Ultraviolet
- **Special Feature:** Filtered Water Near 0 TDS

## Images

![SimPure T1-400UV Tankless Reverse Osmosis System with UV, NSF/ANSI 58 Certified, Under Sink RO Water Filter System 400 GPD, 8 Stage Filtration Near 0 TDS, Built-in Pump, BPA Free, 1.5:1 Pure to Drain - Image 1](https://m.media-amazon.com/images/I/71OzxavyH1L.jpg)

## Available Options

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

## 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

### ⭐⭐⭐⭐⭐ Best Tasting Water !
*by C***G on January 4, 2026*

I recently installed this tankless under-sink RO system, and it’s been a fantastic upgrade for my home water quality. The multi-stage filtration removes a wide range of contaminants while the alkaline remineralization adds back beneficial minerals for better taste and balanced pH. The built-in UV sterilization gives extra peace of mind by helping to eliminate microbes, and the compact, tankless design saves precious space under the sink. Setup was fairly straightforward, and daily use delivers clean, great-tasting water on demand. A highly effective and efficient choice for anyone serious about pure drinking water

### ⭐⭐⭐⭐⭐ Honest Review
*by M***C on May 16, 2025*

I purchased this system close to 1.5 years ago and I have to say I love the quality of water it produces, the simplicity to replace filters as needed, the tankless feature, and the efficiency in term of waste water versus drinkable water which is 1.5:1 respectively. My city water is TDS is around 270ppm and after I used the simpure T1-400UV, it reduced it to 0ppm for the first 6 months then after it remained steady around 10-14ppm after 1.5 years and on. This is extremely clean per RO standards which is usually around anything less than 100ppm. The tankless feature has the major benefit of saving a ton of under-sink storage space which is already limited from the start. However tankless feature requires the user to flush the system every time for 1-2 minutes if it has not been used for an extended amount of time since the "still dirty" water is mixing with the clean water in the tank due to equilibrium. For the first 1-2 minutes of flushing, the TDS of my water is 50-120ppm then after 2 minutes it stays at 13ppm (1.5 years age of filters). If you always want instant clean water than a RO system with tank is needed. This system can produce unlimited clean RO water on demand once set up without running out as systems with tanks do. After 1.5 years of heavy use, I encountered an issue where the system turns off intermittently. I contacted Simpure and they were very helpful and accommodating even though my 1 year warranty has passed. It turns out from sending them videos that my control box was faulty which they sent me a new one and I replaced (5 minute job) and the system works like it was brand new again. Ellen was the Simpure rep that reached out to me and she was very patient and understanding. Very appreciative of her helpfulness and follow ups. Installing this RO system if very DIY if you watch videos on youtube. Or hire a professional which would cost $$$. Using this system has definitely eliminated plastic/aluminum waste from my home and the water quality is far superior to bottled water now per TDS measurements. Can use RO water for cooking, fish tanks, or carbonated water machines. Below you can see my city water which is around 270ppm , SimPure reduces this number to 13ppm which is extremely clean water. After installation it sits flush against the wall so you have plenty of space under the sink still. Overall I would highly recommend anyone to get this if they are looking for a efficient space saving RO system.

### ⭐⭐⭐⭐⭐ Alkaline Reverse Osmosis System
*by S***D on January 28, 2026*

I have been so happy with this reverse osmosis system and it was pretty easy to install the system. I only need a tiny bit of help from my husband🙄. The biggest issue was making space under the kitchen sink which I have too much stuff under there anyway, but overall very pleased with it and it REALLY doesn't take up much room at all under the sink. There is also a disposal under the sink too, so was fairly easy to get it installed with disposal kind of in the way. I drink the water everyday and it has a pH of almost 10, so this is exactly what I wanted, and I did a ton of research before deciding to purchase this one. I didn't realize that 3 of the filters are good for 6 months, and the 4th, the "RO" filter is good for 1 year... So now that I'm familiar with which filters need to be changed, and WHEN they get changed, everything is great! I ordered the 3, six month filters, 6 months ago, and somehow I chose a set of three that did not go to my machine... however two of them did. I called customer service asking what filter goes where, as I was confused, and they sent me out the correct filter at no additional charge to me, and they did NOT require me to return the one that didn't go to my system. So I am very pleased with the customer service aspect as well. The water tastes great, and I keep a gallon of cold RO water in the fridge at all times, for this is the ONLY water I drink. Not only do the "humans" drink it, but also all of our pets, baby silkies, and our cat Phoenix. The spigot that came with the system is great because it's tall and you can twist it over to the side and put a big pot under it and fill it up without holding it. The flow rate is pretty fast however filling up a large pot to boil potatoes can be a couple minutes, it's great that it has the tall faucet so you can fit a gallon jug under it as well as big pots and pans, so you don't have to hold them while it's filling up. Overall I give it five stars 😁. Thank you so much SimPure! ❤️

## Frequently Bought Together

- SimPure T1-400UV Tankless Reverse Osmosis System with UV, NSF/ANSI 58 Certified, Under Sink RO Water Filter System 400 GPD, 8 Stage Filtration Near 0 TDS, Built-in Pump, BPA Free, 1.5:1 Pure to Drain
- 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 T1-400UV 1-Year Replacement Filter Cartridge Pack Set for T1-400UV Tankless Reverse Osmosis Water Filter System (2*PP + 2*CTO + 1*RO + 2*T33)

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-05*