---
product_id: 93957034
title: "Avanti Flow Restrictor for drinking water filter RO reverse osmosis - 550 ml/minute for 50 GPD RO membrane, 1/4\" quick-connect fittings - QF-FR550"
brand: "avanti membrane technology"
price: "€ 1.27"
currency: EUR
in_stock: false
reviews_count: 2
url: https://www.desertcart.sk/products/93957034-avanti-flow-restrictor-for-drinking-water-filter-ro-reverse-osmosis
store_origin: SK
region: Slovakia
---

# NSF certified 550 ml/min flow rate 1/4" quick-connect Avanti Flow Restrictor for drinking water filter RO reverse osmosis - 550 ml/minute for 50 GPD RO membrane, 1/4" quick-connect fittings - QF-FR550

**Brand:** avanti membrane technology
**Price:** € 1.27
**Availability:** ❌ Out of Stock

## Summary

> 💦 Flow into the Future with Confidence!

## Quick Answers

- **What is this?** Avanti Flow Restrictor for drinking water filter RO reverse osmosis - 550 ml/minute for 50 GPD RO membrane, 1/4" quick-connect fittings - QF-FR550 by avanti membrane technology
- **How much does it cost?** € 1.27 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/93957034-avanti-flow-restrictor-for-drinking-water-filter-ro-reverse-osmosis)

## Best For

- avanti membrane technology enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Crafted from materials that meet and exceed NSF standards, guaranteeing safe drinking water.
- • **Durable & Reliable:** Corrosion and lead-free construction means long-lasting performance you can trust.
- • **Effortless Installation:** Enjoy tool-free, quick-connect fittings for a hassle-free setup that saves you time.
- • **Versatile Compatibility:** Designed to work seamlessly with both plastic and copper tubing, ensuring flexibility in your installation.
- • **Optimize Your Water Flow:** Experience a smooth 550 ml/minute flow rate, perfectly tailored for 50 GPD RO membranes.

## Overview

The Avanti Flow Restrictor is engineered for optimal performance in reverse osmosis systems, providing a flow rate of 550 ml/minute for 50 GPD membranes. Its quick-connect fittings allow for easy installation without tools, and it is compatible with both plastic and copper tubing. Made in Taiwan, this restrictor meets NSF standards for safety, ensuring your drinking water is free from contaminants.

## Description

"Applications · Reverse Osmosis Systems · Drinking Water Filtration Systems · Water Coolers · Coffee Machines · RVs · Misting Systems · Point-of-Use Filtration Systems · Beverage Dispensers · Ice MakersFood-Grade Quality · Our fittings are produced with food-grade material and can be used in food and drinking water applications Portable Water Applications · Our fittings are suitable for potable water applications with a maximum chlorine concentrate of 4 ppm · Direct exposure to sunlight will reduce fittings service life and may lead to failure · All fittings and tubing should not be used near heart emitting appliances · For cold water applications only Technical Specifications · Body: made of food-grade Polyacetal and Polyoxy Methylene · O-ring: Nitrile (NBR) · Collet: Polyoxy Methylene and stainless steel · Working Pressure and temperature Range: Maximum 150 psi @ 70°F (10.3 bar @ 21°C) / 60 psi @ 140°F (4.1 bar @ 60°C); Minimum 33°F (1°C) Installation and Testing · Fittings and tubing installations should be inspected by pushing and pulling on the connection points and be pressure-tested prior putting into service · Fittings should not be exposed to excessive side loads and caution should be taken to prevent undue stress and excessive side loading "

## Features

- limits brine flow rate; specifically designed to work with RO membrane; please check your RO system GPD (gallons per day) to match with proper restrictor
- complies with all requirements for materials in contact with food and drinking water
- quick-connect with no tools required to provide permanent or removable leak-proof connections
- works with plastic or copper tubing; corrosion and lead-free
- Meets and exceeds NSF standard; Made in Taiwan

## Product Details

- **Material:** High Grade Polyacetal
- **External Testing Certification:** NSF
- **Brand:** Avanti Membrane Technology
- **Unit Count:** 1.0 Count

## Images

![Avanti Flow Restrictor for drinking water filter RO reverse osmosis - 550 ml/minute for 50 GPD RO membrane, 1/4" quick-connect fittings - QF-FR550 - Image 1](https://m.media-amazon.com/images/I/61OC2Sz4JjL.jpg)
![Avanti Flow Restrictor for drinking water filter RO reverse osmosis - 550 ml/minute for 50 GPD RO membrane, 1/4" quick-connect fittings - QF-FR550 - Image 2](https://m.media-amazon.com/images/I/71ITSFqF7QL.jpg)
![Avanti Flow Restrictor for drinking water filter RO reverse osmosis - 550 ml/minute for 50 GPD RO membrane, 1/4" quick-connect fittings - QF-FR550 - Image 3](https://m.media-amazon.com/images/I/71F7pRy2dhL.jpg)
![Avanti Flow Restrictor for drinking water filter RO reverse osmosis - 550 ml/minute for 50 GPD RO membrane, 1/4" quick-connect fittings - QF-FR550 - Image 4](https://m.media-amazon.com/images/I/61ZYBAdrPCL.jpg)
![Avanti Flow Restrictor for drinking water filter RO reverse osmosis - 550 ml/minute for 50 GPD RO membrane, 1/4" quick-connect fittings - QF-FR550 - Image 5](https://m.media-amazon.com/images/I/71rOiLtgb4L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fixed my high TDS readings
*by T***L on November 6, 2020*

This flow restrictor works great. It fixed my high TDS readings. My previous flow restrictor was plugged with scale. It took me a while to figure out.

### ⭐ Not reliable
*by M***R on March 16, 2020*

It seemed to fix my continuous drain, but only lasted about a week

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-20*