--- product_id: 576525175 title: "A. O. Smith AOS-HERO-S2 Genuine Replacement | Stage 2 SmartFlow RO Membrane" brand: "a. o. smith" price: "₨3138" currency: SCR in_stock: true reviews_count: 8 url: https://www.desertcart.sc/products/576525175-a-o-smith-aos-hero-s2-genuine-replacement-stage-2 store_origin: SC region: Seychelles --- # 12-month/730-gallon lifespan 99% contaminant reduction NSF certified filtration A. O. Smith AOS-HERO-S2 Genuine Replacement | Stage 2 SmartFlow RO Membrane **Brand:** a. o. smith **Price:** ₨3138 **Availability:** βœ… In Stock ## Summary > πŸ’§ 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 by a. o. smith - **How much does it cost?** ₨3138 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/576525175-a-o-smith-aos-hero-s2-genuine-replacement-stage-2) ## Best For - a. o. smith enthusiasts ## Why This Product - Trusted a. o. smith brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Long-Lasting Freshness:** Replace every 12 months or after filtering 730 gallons to maintain peak water purity. - β€’ **Pure Water, Pure Confidence:** Eliminates up to 99% of 90+ harmful contaminants including chlorine, lead, and microplastics. - β€’ **Seamless System Compatibility:** Designed exclusively for AOS-HERO RO systems ensuring optimal filtration and easy replacement. - β€’ **Healthier Hydration, Happier You:** Experience crisp, clean water that supports your wellness and lifestyle goals. - β€’ **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 Full system reduces up to 99% of 90 harmful contaminants including lead, mercury, asbestos, pesticides, pharmaceuticals, chlorine, and more. Replacement filter for use with the A. O. Smith High-Efficiency Reverse Osmosis System (AOS-HERO-CHR). ## 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 - HERO system is independently tested to NSF standards 42, 53, 58, and 401. - SmartFlow Technology - provides you with more pure water, less water waste, and longer filter life than the average RO system. - Stage 2 reverse osmosis replacement membrane for AOS-HERO-CHR (B0CCQF4QZX) systems. Replace every 12 months or 500 gallons whichever comes first. - Use only certified, genuine AO Smith replacement filter cartridge for continued contaminant removal and system performance. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0CCQCNDLK | | Best Sellers Rank | #18,262 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #131 in Replacement Under-Sink Water Filters | | Brand Name | A. O. Smith | | Compatible Water Purifier Models | A.O. Smith AOS-HERO-CHR | | Customer Reviews | 4.6 4.6 out of 5 stars (113) 4.6 out of 5 stars | | Eu Spare Part Availability Duration | 1 years | | External Testing Certification | NSF/ANSI Standard 58 | | Included Components | Reverse Osmosis Membrane Replacement | | Item Dimensions D X W X H | 3.25"D x 3.25"W x 12.9"H | | Item Highlight | For AOS-HERO RO System | WQA Certified | Reduces 99% of 90 Contaminants | Last 12-Months | | Item Weight | 1.8 pounds | | Manufacturer | A. O. Smith | | Manufacturer Part Number | AOS-HERO-S2 | | Material Type | RO Membrane | | Model Number | AOS-HERO-S2 | | Number Of Items | 1 | | Number Of Packs | 1 | | Product Benefits | Reduces TDS | | Set Name | Stage 2 | AOS-HERO-S2 | | Unit Count | 1 Count | | Upc | 811640030452 | ## 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 - Image 1](https://m.media-amazon.com/images/I/4149tfDV85L.jpg) ![A. O. Smith AOS-HERO-S2 Genuine Replacement | Stage 2 SmartFlow RO Membrane - Image 2](https://m.media-amazon.com/images/I/61s6x2N6t9L.jpg) ![A. O. Smith AOS-HERO-S2 Genuine Replacement | Stage 2 SmartFlow RO Membrane - Image 3](https://m.media-amazon.com/images/I/51UUpQhXuYL.jpg) ![A. O. Smith AOS-HERO-S2 Genuine Replacement | Stage 2 SmartFlow RO Membrane - Image 4](https://m.media-amazon.com/images/I/516iNh6HoSL.jpg) ![A. O. Smith AOS-HERO-S2 Genuine Replacement | Stage 2 SmartFlow RO Membrane - Image 5](https://m.media-amazon.com/images/I/61OewlqgQWL.jpg) ## Available Options This product comes in different **Set name** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ OEM PART READY TO INSTALL WHEN SCHEDULED *by on Reviewed in the United States November 19, 2025* They were hard to get for a while, but this was a new OEM part and is ready to install on schedule. I like the RO unit. These parts are expensive but very easy to install. ### ⭐⭐⭐⭐⭐ Aerosmith reverse osmosis water filters *by on Reviewed in the United States July 17, 2026* Excellent water filtration ### ⭐⭐⭐⭐⭐ Great filter great tasting water. *by on Reviewed in the United States June 7, 2026* This water filter worked perfectly. Made very β€œhard” very drinkable and coffee made through the whole AO Smith reverse osmosis process really tastes good. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sc/products/576525175-a-o-smith-aos-hero-s2-genuine-replacement-stage-2](https://www.desertcart.sc/products/576525175-a-o-smith-aos-hero-s2-genuine-replacement-stage-2) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-09-21*