---
product_id: 576525175
title: "A. O. Smith AOS-HERO-S2 Genuine Replacement | Stage 2 SmartFlow RO Membrane | For AOS-HERO RO System | WQA Certified | Reduces 99% of 90 Contaminants | Last 12-Months"
brand: "ao smith"
price: "€ 141.82"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/576525175-a-o-smith-aos-hero-s2-genuine-replacement-stage-2
store_origin: NL
region: Netherlands
---

# 12-month/730-gallon lifespan 99% contaminant reduction NSF certified filtration A. O. Smith AOS-HERO-S2 Genuine Replacement | Stage 2 SmartFlow RO Membrane | For AOS-HERO RO System | WQA Certified | Reduces 99% of 90 Contaminants | Last 12-Months

**Brand:** ao smith
**Price:** € 141.82
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with AO Smith’s elite RO membrane!

## Quick Answers

- **What is this?** A. O. Smith AOS-HERO-S2 Genuine Replacement | Stage 2 SmartFlow RO Membrane | For AOS-HERO RO System | WQA Certified | Reduces 99% of 90 Contaminants | Last 12-Months by ao smith
- **How much does it cost?** € 141.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/576525175-a-o-smith-aos-hero-s2-genuine-replacement-stage-2)

## Best For

- ao smith enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Freshness:** Replace every 12 months or after filtering 730 gallons to maintain peak water purity.
- • **Pure Water, Pure Confidence:** Eliminates up to 99% of 90+ harmful contaminants including chlorine, lead, and microplastics.
- • **Seamless System Compatibility:** Designed exclusively for AOS-HERO RO systems ensuring optimal filtration and easy replacement.
- • **Healthier Hydration, Happier You:** Experience crisp, clean water that supports your wellness and lifestyle goals.
- • **Certified Performance You Can Trust:** Independently tested and certified to NSF standards 42, 53, 58, and 401 for guaranteed water safety.

## Overview

The AO Smith Reverse Osmosis Water Filter Membrane Replacement is a certified, high-performance filter designed for AOS-HERO RO systems. It reduces up to 99% of over 90 contaminants including chlorine, lead, and microplastics, ensuring clean and healthy drinking water. Tested to NSF standards 42, 53, 58, and 401, it offers reliable filtration with a recommended replacement every 12 months or 730 gallons.

## Description

Reverse Osmosis Water Filter Membrane Replacement - Replacement for AOS-HERO RO Filtration Systems - Filters to Reduce Chlorine & Other Contaminants from Drinking Water - AOS-HERO-S2

## Features

- Clean, Healthy Water - Reduce up to 99% of 90 contaminants including chlorine, chloramine, lead, pesticides, PFOA/PFOS, cysts, microplastics, and more from water in your house.
- Advanced Filtration - Replacement membrane indepently tested to NSF standards 42, 53, 58, and 401.
- Use only certified, genuine AO Smith replacement filter cartridge for continued contaminant removal and system performance.
- Stage 2 reverse osmosis replacement membrane for AOS-HERO-CHR (B0CCQF4QZX) systems. Replace every 12 months or 730 gallons whichever comes first.

## Product Details

- **Material:** Plastic
- **Product Dimensions:** 3.25"D x 3.25"W x 12.9"H
- **Item Weight:** 1.8 Pounds
- **External Testing Certification:** NSF
- **Product Benefits:** Reduces TDS

## Images

![A. O. Smith AOS-HERO-S2 Genuine Replacement | Stage 2 SmartFlow RO Membrane | For AOS-HERO RO System | WQA Certified | Reduces 99% of 90 Contaminants | Last 12-Months - Image 1](https://m.media-amazon.com/images/I/4149tfDV85L.jpg)

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---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-08-14*