---
product_id: 74403051
title: "OneFlowPlus Water Filtration System"
brand: "watts"
price: "฿90430"
currency: THB
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.th/products/74403051-oneflowplus-water-filtration-system
store_origin: TH
region: Thailand
---

# 250,000 gal scale reduction capacity Salt-free, chemical-free eco-friendly Easy wall/floor mount installation OneFlowPlus Water Filtration System

**Brand:** watts
**Price:** ฿90430
**Availability:** ✅ In Stock

## Summary

> 💧 Scale-free water, effortlessly pure — join the smart hydration revolution!

## Quick Answers

- **What is this?** OneFlowPlus Water Filtration System by watts
- **How much does it cost?** ฿90430 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/74403051-oneflowplus-water-filtration-system)

## Best For

- watts enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Convenient:** Sleek 10"x18"x10" design fits easily on wall or floor with included mounting bracket and simple cartridge replacement tools.
- • **Eco-Smart Efficiency:** No salt, no electricity, no wastewater—reduces energy use and extends lifespan of water heaters and plumbing sustainably.
- • **Ultimate Scale Defense:** Prevents scale buildup chemically-free, protecting your pipes and appliances for up to 3 years or 250,000 gallons.
- • **Trusted Industry Leader:** Backed by Watts Premier’s 30+ years of innovation and certified NSF/ANSI standards for lead-free and water quality assurance.
- • **Pure Taste, Zero Compromise:** High-capacity 20-micron carbon block filter removes chlorine taste, odor, and sediment for fresh water at every tap.

## Overview

The Watts OFPSYS OneFlow Plus is a compact, salt-free water filtration and scale prevention system designed for whole-house use. It features a dual-cartridge setup with a scale reduction cartridge effective for up to 250,000 gallons and a 20-micron carbon block filter that removes chlorine taste and sediment. Easy to install and maintain, it operates without chemicals, salt, or electricity, making it an eco-friendly alternative to traditional water softeners. Certified to NSF/ANSI standards, it ensures safe, great-tasting water while protecting plumbing and appliances from scale buildup.

## Description

OneFlow Plus Salt-Free Scale Reduction and Water Filtration Systems use a commercially trusted, physical water treatment technology to keep scale from forming on pipes and reducing appliance life, along with a high-capacity water filter to remove foul tastes, odors, and sediments for better tasting tap water. A single, compact unit with dual cartridges replaces a space-consuming water softening system and water filtration system — using no salt, chemicals, and electricity. OneFlow Plus is an intelligent scale solution and is a great salt-free alternative to water softening (ion exchange) or scale sequestering devices. OneFlow Plus system is certified by the Water Quality Association (WQA) to NSF/ANSI Standard 372 for lead free. The carbon block used in the OFPRFC carbon filter is certified to NSF/ANSI 42. Watts Water Technologies OneFlow Anti Scale Media is certified by the Water Quality Association (WQA) to NSF/ANSI Standard 61.

## Features

- ONEFLOW PLUS SCALE PREVENTION SYSTEM: The Watts Premier OneFlow Plus Salt-Free Scale Prevention and Water Filtration System provides chemical-free scale reduction and protection. It converts hard minerals into soft particles, preventing build up inside pipes and does not add or remove anything from water, allowing useful minerals such as calcium, potassium, and magnesium to remain.
- HIGHLY EFFECTIVE: Rated to be the most effective with regard to scale prevention technology, this system includes one scale reduction cartridge good for up to 250,000 gallons or 3 years and one high-capacity 20-Micron carbon block water filter that removes chlorine taste and odor while reducing sediment and is good for up to 50,000 gallons - leading to great-tasting water at every tap in your household.
- USER-FRIENDLY DESIGN: This 10" x 18" x 10" (D x H x W) compact system is easily installed to the floor or wall using the included mounting bracket; simply connect the system to the main water supply before the water heater and avoid exposing it to freezing temperatures. Virtually maintenance-free, it also includes a pressure relief valve and multi-function tool for easy cartridge replacements.
- ENVIRONMENTALLY FRIENDLY: This system improves efficiency of all water heating devices and downstream plumbing components, improves equipment life, reduces energy consumption, and is a great alternative to standard water softener or other whole house water filter systems. It is environmentally friendly with no electricity or drain required and no waste water.
- THE PREMIER DIFFERENCE: Since our founding in 1989, Premier has been dedicated to the design, development, and marketing of high-quality water filtration systems that exceed industry standards. Following our Watts Water Technologies in 2001, our audience and influence have only expanded, solidifying Watts Premier as a trusted leader in the industry.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Watts Premier |
| Special Feature | Change Filter Indicator |
| Product Dimensions | 9.2"L x 9.2"W x 19.3"H |
| Package Information | Dispenser |
| Installation Type | Freestanding |
| Power Source | Corded Electric |
| Item Weight | 15 Pounds |
| Model Name | OneFlow Plus |
| Lower Temperature Rating | 40 Degrees Fahrenheit |
| Maximum Flow Rate | 10 Gallons Per Minute |
| Manufacturer | Watts |
| Part Number | 7100638 |
| Item Weight | 15 pounds |
| Country of Origin | China |
| Item model number | OFPSYS |
| Size | System + Carbon Block & Scale Reduction Filters |
| Color | System + 2 Filters |
| Pattern | Water Filter |
| Item Package Quantity | 1 |
| Special Features | Change Filter Indicator |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | The OneFlow (R) tank system is warranted to be free of defects in materials and workmanship for 5 years from the date of original shipment. The OneFlow (R) media is warranted for performance for a period of 2 years from the date of the original installation when installed and operated in accordance with instructions. The OneFlow (R) cartridge system is warranted to be free of defects in materials and worksmanship for 1 year from the date of original shipment. OneFlow Cartridges (R) are warranted for performance for a period of one year from the date of original installation. |

## Product Details

- **Brand:** Watts
- **Special Feature:** Change Filter Indicator
- **Product Dimensions:** 9.2"L x 9.2"W x 19.3"H
- **Material:** Plastic
- **Capacity:** 2.2 Pounds
- **Included Components:** Scale Prevention and Water System
- **Package Information:** Dispenser
- **Installation Type:** Freestanding
- **Purification Method:** Carbon Block
- **Power Source:** Corded Electric

## Images

![OneFlowPlus Water Filtration System - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    3 years and still impressed.
  

*by D***E on Reviewed in the United States on January 9, 2024*

Bought this in Dec of 2020 after I hauled away our old GE water softener (salt).  The OneFlow fittings were a bit of a pain to match to our CPVC system, but I got it done.  I also agree with another reviewer who said there should be shutoffs on each side of this to make maintenance easier. I put 'em in, and yes, maintenance is easy. =)I've changed the big/outer filter twice (early 22 & now), and the inner once (now).  Both times the water between the housing and the big filter was the color of brewed tea (no smell, but still disturbing). However when I pulled up only the inner filter, the water was clear as could be.A few weeks ago we started to see some minor hard-water deposits on the shower heads, so I went ahead and changed both filters (and O-rings). For the inner filter, that's the first time since we put the system in. Now that it's changed, I fully expect another 3 years of not having to worry about hard-water deposits.I can't say it will work for you, but in our book, we've certainly found the system to be worth the money.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Noticeable difference for a fractional cost, and some wrenching
  

*by T***. on Reviewed in the United States on December 31, 2019*

We didn’t want an actual softener for myriad reasons but we needed a solution for the extremely hard water. After a week of research we settled in giving this a shot and have not been disappointed.Our house is new construction and I finally installed this filter after we’d been here for a month, and already fixture were accumulating scaling and we were running vinegar through the dishwasher. We saw that stop within a coyote days and while standing water that evaporate will leaves spots, those spots are more a dusty residue that easily wipes up. We are running the filter in sequence with an electromagnetic descaler (HQUA), which was installed simultaneously, so it is difficult to say how much effect is compounded by the joint treatment.The carbon filter does exactly what it’s supposed to. Tap water is now plenty satisfying to drink and the old chlorine odor is hardly present, if at all.Over all extremely satisfied with the installation process, the only difficulty was my inability to properly apply the silicone tape properly the first time to the brass threading.

### ⭐ 1.0 out of 5 stars







  
  
    Do not buy!
  

*by J***L on Reviewed in the United States on September 27, 2023*

I bought this in January 2020 and had a local plumber install it. Things were fine and water quality did seem better until this month. Now cracks have appeared above the inlet and outlet ports in the tank itself. The manufacturer Watts indicates that there is a 5 year warranty on the tank. When I called they said I had to go through Amazon since that is where I bought it. Now Amazon indicates the “window of support “ closed last year. I guess I’m just out of luck. Very disappointed in both Watts and Amazon on this.

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---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-30*