---
product_id: 627531247
title: "Reverse Osmosis Membrane 50GPD Water Filter Replacement for Reverse Osmosis System 11.75\"x1.75\" Under Sink RO Drinking Purify for House"
brand: "sandmonk"
price: "$91.25"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/627531247-reverse-osmosis-membrane-50gpd-water-filter-replacement-for-reverse-osmosis
store_origin: US
region: United States of America
---

# 50 GPD flow rate 11.75" x 1.75" universal fit 97% salt rejection Reverse Osmosis Membrane 50GPD Water Filter Replacement for Reverse Osmosis System 11.75"x1.75" Under Sink RO Drinking Purify for House

**Brand:** sandmonk
**Price:** $91.25
**Availability:** ✅ In Stock

## Summary

> 💧 Drink Smart, Live Pure – Upgrade Your Water Game Today!

## Quick Answers

- **What is this?** Reverse Osmosis Membrane 50GPD Water Filter Replacement for Reverse Osmosis System 11.75"x1.75" Under Sink RO Drinking Purify for House by sandmonk
- **How much does it cost?** $91.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/627531247-reverse-osmosis-membrane-50gpd-water-filter-replacement-for-reverse-osmosis)

## Best For

- sandmonk enthusiasts

## Why This Product

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

## Key Features

- • **Fits Like a Glove:** Universal 11.75" x 1.75" size designed for most residential RO systems—easy swap, no hassle.
- • **Optimized for Performance:** Operates efficiently at 60-80 psi with a 50 GPD flow rate, perfect for home or lab use.
- • **Pure Hydration, Guaranteed:** Advanced polyamide TFC membrane ensures ultra-safe, clean drinking water.
- • **Powerful Contaminant Blocker:** Eliminates 97% of salts, heavy metals, and harmful minerals for healthier sips.
- • **Built to Last, Built for Health:** Food-grade materials and stable filtration keep your water pure and your family safe.

## Overview

This Sandmonk Reverse Osmosis Membrane delivers 50 gallons per day of purified water by rejecting 97% of salts and harmful contaminants. Sized at 11.75" x 1.75", it fits most standard residential RO systems, operating efficiently between 60-80 psi. Made from 100% food-grade thin film composite material, it ensures safe, clean drinking water for your home or professional environment.

## Description

Operating Limited: Testing Pressure: 60~80psi Max. Feed water Temperature: 45°C Max. Feed water SDI: 5 Free Chlorine Concentration of Feed water: <0.1ppm Max. Working Pressure: 150psi Maximum Feed Water TDS:1000ppm Test Conditions: NaCI Solution: 200ppm Temperature: 77°F (25°C) Applied Pressure:60psi (0.41MPa) Recovery Rate of Single Membrane Element: 15% PH Range: 7.5

## Features

- 【Safe&Clean Water】Our membrane water filter is made from polyamid film, food grade providing safe-clean drinking water
- 【Healthy Drinking】 50 GPD RO membrane with a high 97% stabilized salt rejection rate, the membrane layer can prevent heavy metals (fluoride, calcium, magnesium, lead, colloids, chromium, and nitrates), organic materials, and harmful minerals, including other soluble salts found in water resources which TDS is under 1000ppm
- 【Universal Size】The water filter replacement size is 11.75 x 1.75-inch, designed to fit in standard 1812/2012 residential style RO membrane housings utilizing a 2-inch internal diameter, it can be used for most reverse osmosis water filtration systems
- 【Wide Application】The pressure can be 60~80psi, the flow rat is 50 GPD, they are applicable to residential reverse osmosis systems and other water purifying devices in hospitals and laboratories

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Sandmonk |
| Colour | Blue |
| Product Dimensions | 4.45 x 4.45 x 33.02 cm; 191 g |
| Material | 100% food-grade Thin Film Composite (TFC) material |
| Item Weight | 191 g |

## Product Details

- **Material:** 100% food-grade Thin Film Composite (TFC) material
- **Product dimensions:** 44D x 44W x 330H millimetres
- **External testing certification:** NSF
- **Product benefits:** remove heavy metal, organic, rubber mass, harmful minerals and other soluble salts from water, including lead (removes 98%), magnesium, chromium, chlorine, fluoride, arsenic, asbestos, calcium, sodium, colloids, nitrates and more.
- **Brand:** Sandmonk

## Images

![Reverse Osmosis Membrane 50GPD Water Filter Replacement for Reverse Osmosis System 11.75"x1.75" Under Sink RO Drinking Purify for House - Image 1](https://m.media-amazon.com/images/I/51Zvm-po7bL.jpg)

## Frequently Bought Together

- SANDMONK Reverse Osmosis Membrane 50GPD Water Filter Replacement for Reverse Osmosis System 11.75"x1.75" Under Sink RO Drinking Purify for House
- Aquatic Life RO Buddie Cartridge 3-pce Bundle, 1-Color Changing Mixed Bed DI Resin Cartridge, 1- Sediment Cartridge, 1-Carbon Cartridge

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**Shop now:** [https://www.desertcart.us/products/627531247-reverse-osmosis-membrane-50gpd-water-filter-replacement-for-reverse-osmosis](https://www.desertcart.us/products/627531247-reverse-osmosis-membrane-50gpd-water-filter-replacement-for-reverse-osmosis)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-20*