---
product_id: 3673015
title: "ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE"
brand: "watts premier"
price: "AR$200365"
currency: ARS
in_stock: true
reviews_count: 13
category: "Watts Premier"
url: https://www.desertcart.com.ar/products/3673015-original-watts-premier-105331-ro-pure-ro-4-membrane
store_origin: AR
region: Argentina
---

# 50 GPD filtration capacity NSF/ANSI 42 chlorine & cyst removal Push-button quick release ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE

**Brand:** watts premier
**Price:** AR$200365
**Availability:** ✅ In Stock

## Summary

> 💧 Upgrade your hydration game with effortless, elite filtration!

## Quick Answers

- **What is this?** ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE by watts premier
- **How much does it cost?** AR$200365 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/3673015-original-watts-premier-105331-ro-pure-ro-4-membrane)

## Best For

- watts premier enthusiasts

## Why This Product

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

## Key Features

- • **Powerful 50 GPD Output:** Delivers up to 50 gallons of purified water daily, perfect for busy households.
- • **Built to Last 2-5 Years:** Durable carbon fiber membrane engineered for long-term, reliable performance.
- • **Effortless Filter Swaps:** Push-button release means no tools, no hassle—upgrade your water in seconds.
- • **Smart Color-Coded Design:** Green label and cap for instant recognition and foolproof installation.
- • **Elite Contaminant Defense:** Removes 99.95% of cysts and reduces chlorine for crisp, clean taste.

## Overview

The Watts Premier RO Pure 50 GPD Membrane is a high-performance replacement filter designed for select under-sink RO Pure and Zero/Pure Plus systems. It efficiently reduces total dissolved solids, chlorine, and 99.95% of harmful cysts, delivering up to 50 gallons of purified water daily. Featuring a smart green-coded design and a push-button quick-release mechanism, this durable carbon fiber membrane ensures easy, tool-free replacement and long-lasting filtration for 2 to 5 years.

## Description

Product Description The Watts Premier RO Pure 50 GPD Membrane is an essential component designed specifically for under sink RO Pure (WP531411, WP531407) and Zero/Pure Plus systems (WP531517, WP531417), providing effective filtration for your reverse osmosis system. This package includes one 50 GPD (gallons per day) Membrane (WP105331), which is proficient in significantly reducing total dissolved solids (TDS) and various impurities, effectively removing 99.95% of cysts like, safeguarding your drinking water from common harmful waterborne chemicals.Tested to meet the NSF/ANSI 42 standard for chlorine reduction, this membrane ensures your water not only tastes better but is also free from unpleasant odors associated with chlorine. The 11-inch filter is easily identifiable by its green label and cap, distinguishing it from other filters in the Watts Premier RO system range, thus simplifying maintenance and replacement processes.A standout feature of this membrane is its push-button release mechanism, allowing for hassle-free replacement without the need to shut off the water source. This design innovation ensures that changing the filter is quick and straightforward, requiring no special tools. Simply press the button to release the old membrane and insert the new one.Constructed from high-quality materials, the Watts Premier RO Pure 50 GPD Membrane guarantees long-lasting durability. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing the membrane filter every 2 to 5 years.Please note this kit will NOT fit the Watts 1/4 Turn Kwik-Change RO System. From the Manufacturer This 50-Gallon per day semi permeable membrane will effectively reduce TDS (total dissolved solids), Sodium and a wide range of contaminants such as Lead, Arsenic, Perchlorate, Chromium, Copper and Radium. It will also remove over 99.95-Percent cysts such as Giardia and Cryptosporidium.

Review: Very Good Water filter set - Very easy to install, color coding makes it simple to place in correct area. No concerns.
Review: Fit and work perfectly. - Fit perfectly. Very easy to install. Just push button above old filter to pull off. Then snap new one on.

## Features

- MEMBRANE FILTER REPLACEMENT: Designed for your under sink RO Pure (WP531411, WP531407) or Zero/Pure Plus (WP531517, WP531417), the Watts Premier RO Pure 50 GPD Membrane is the work horse filter of your reverse osmosis system. Please note this product will not fit the Watts 1/4 Turn Kwik-Change RO System.
- HIGHLY EFFECTIVE FILTRATION: Includes one 50 GDP Membrane (WP105331) for effectively reducing TDS and a wide range of impurities, including s 99.95% of cysts. It has also been tested against standard NSF/ANSI 42 for chlorine reduction.
- SMART DESIGN: This 11-inch filter has a green label and cap to help differentiate it from other filters in the Watts Premier RO system family of filters. It also features a push button release that allows for hassle-free replacement without shutting off the water source. Easily change out with a quick push of a button - no special tools required!
- QUALITY CONSTRUCTION: This durable filter is crafted from high-quality materials for maximum filtration. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing the membrane filter every 2 to 5 years.
- 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 |
|---------------|-------|
| ASIN | B004OZRIOI |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #13,654 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #52 in Undersink Water Filtration Replacement Parts |
| Brand | Watts Premier |
| Color | Green |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,046) |
| Date First Available | November 16, 2010 |
| EU Spare Part Availability Duration | 2 Years |
| External Testing Certification | ANSI, NSF |
| Global Trade Identification Number | 00783583786386 |
| Included Components | Membrane |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 12.3 ounces |
| Item model number | WP105331 |
| Manufacturer | Watts |
| Material | Carbon Fiber |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Part Number | 105331-G |
| Product Benefits | Reduces odor and harmful chemicals in water by up to 99.8% |
| Product Dimensions | 3"D x 11"W x 3"H |
| Set Name | RO Pure (RO-4) |
| Size | 1 Count (Pack of 1) |
| Style | Replacement Kit |
| UPC | 783583786386 791769420566 099351153312 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Watts Premier
- **External Testing Certification:** ANSI, NSF
- **Material:** Carbon Fiber
- **Product Benefits:** Reduces odor and harmful chemicals in water by up to 99.8%
- **Product Dimensions:** 3"D x 11"W x 3"H

## Images

![ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE - Image 1](https://m.media-amazon.com/images/I/21C1Qmfjg7L.jpg)
![ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE - Image 2](https://m.media-amazon.com/images/I/4190QQN7G9L.jpg)
![ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE - Image 3](https://m.media-amazon.com/images/I/41X9dFDOXgL.jpg)
![ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE - Image 4](https://m.media-amazon.com/images/I/41e6bHJJmEL.jpg)
![ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE - Image 5](https://m.media-amazon.com/images/I/41gCVA+76aL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Good Water filter set
*by R***. on August 22, 2025*

Very easy to install, color coding makes it simple to place in correct area. No concerns.

### ⭐⭐⭐⭐⭐ Fit and work perfectly.
*by A***P on March 25, 2025*

Fit perfectly. Very easy to install. Just push button above old filter to pull off. Then snap new one on.

### ⭐⭐⭐⭐⭐ All Cartridge Change Pack
*by A***R on October 22, 2025*

This filter has been in us at our house since 2008. Its great. This 4 cartridge package allows me to change them all.

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-01-23*