---
product_id: 155196337
title: "Dow FilmTec, TW30-1812-50HR 50 gpd TFC High Rejection Membrane for Undersink Reverse Osmosis (RO) System (Replaces Model TW30-1812-50)"
brand: "dow filmtec"
price: "¥9367"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/155196337-dow-filmtec-tw30-1812-50hr-50-gpd-tfc-high-rejection
store_origin: JP
region: Japan
---

# 50 GPD high flow rate Shipped dry for long shelf life High rejection TFC membrane Dow FilmTec, TW30-1812-50HR 50 gpd TFC High Rejection Membrane for Undersink Reverse Osmosis (RO) System (Replaces Model TW30-1812-50)

**Brand:** dow filmtec
**Price:** ¥9367
**Availability:** ✅ In Stock

## Summary

> 💧 Upgrade your hydration game with premium RO filtration!

## Quick Answers

- **What is this?** Dow FilmTec, TW30-1812-50HR 50 gpd TFC High Rejection Membrane for Undersink Reverse Osmosis (RO) System (Replaces Model TW30-1812-50) by dow filmtec
- **How much does it cost?** ¥9367 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/155196337-dow-filmtec-tw30-1812-50hr-50-gpd-tfc-high-rejection)

## Best For

- dow filmtec enthusiasts

## Why This Product

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

## Key Features

- • **Ready When You Are:** Shipped dry to maintain freshness and extend shelf life—install anytime without compromise.
- • **Next-Level Filtration:** Polyamide Thin-Film Composite membrane ensures superior contaminant rejection for crisp, clean water.
- • **Certified Peace of Mind:** NSF/ANSI Standard 58 certified for guaranteed safety and performance you can trust.
- • **Purify More, Waste Less:** Delivers 20% more purified water at a lower 50 psi pressure, maximizing efficiency without extra energy.
- • **Chlorine-Resistant Durability:** Tolerates free chlorine levels below 0.1 ppm, protecting membrane longevity in real-world conditions.

## Overview

The Dow Filmtec TW30-1812-50HR is a high rejection, polyamide thin-film composite membrane designed for undersink reverse osmosis systems. Rated at 50 gallons per day and optimized to purify 20% more water at a lower pressure than comparable models, it ships dry for extended shelf life and is NSF/ANSI Standard 58 certified, ensuring reliable, long-lasting water purification with excellent chlorine tolerance.

## Description

Dow FilmTec, TW30-1812-50HR 50 gpd TFC High Rejection Membrane for Undersink Reverse Osmosis (RO) System (Replaces Model TW30-1812-50)

## Features

- Polyamide Thin-Film Composite (TFC)
- Rated at 50 psi and purifies about 20% more water than elements rated at 60 psi
- Shipped dry for convenient and a long shelf life
- Free Chlorine Tolerance: <0.1 ppm
- FilmTec genuine membrane element, NSF/ANSI Standard 58 certified

## Product Details

- **Material:** Polyamide Thin-Film Composite
- **Product Dimensions:** 1.75"D x 1.75"W x 11.74"H
- **External Testing Certification:** NSF
- **Product Benefits:** Produces 50 gallons of purified water per day with 98% salt rejection
- **Brand:** Dow Filmtec

## Images

![Dow FilmTec, TW30-1812-50HR 50 gpd TFC High Rejection Membrane for Undersink Reverse Osmosis (RO) System (Replaces Model TW30-1812-50) - Image 1](https://m.media-amazon.com/images/I/41YbuLKGs6L.jpg)

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- Dow FilmTec, TW30-1812-50HR 50 gpd TFC High Rejection Membrane for Undersink Reverse Osmosis (RO) System (Replaces Model TW30-1812-50)
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**Shop now:** [https://www.desertcart.jp/products/155196337-dow-filmtec-tw30-1812-50hr-50-gpd-tfc-high-rejection](https://www.desertcart.jp/products/155196337-dow-filmtec-tw30-1812-50hr-50-gpd-tfc-high-rejection)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-09*