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Main image of AOS-HERO-S1S3 Genuine Replacement | Stage 1 & 3 RO Carbon Block For AOS-HERO RO System | WQA Certified | Reduces 99% of 90 Contaminants | Last 6-Months

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AOS-HERO-S1S3 Genuine Replacement | Stage 1 & 3 RO Carbon Block For AOS-HERO RO System | WQA Certified | Reduces 99% of 90 Contaminants | Last 6-Months

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Clean, Healthy Water - Remove up to 99% of 90 contaminants, including chlorine, chloramine, lead, pesticides, PFOA/PFOS, cysts, microplastics, and more from your household water. Advanced Filtration - Replacement filter cartridges are independently tested to NSF standards 42, 53, 58, and 401. SmartFlow Technology - delivers more pure water, less water waste, and longer filter life than the average RO system. Stage 1 and Stage 3 carbon replacement filter cartridges for AOS-HERO-CHR (B0CCQF4QZX) systems. Replace filters every 6 months or 250 gallons, whichever comes first

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Clean, Healthy Water - Remove up to 99% of 90 contaminants, including chlorine, chloramine, lead, pesticides, PFOA/PFOS, cysts, microplastics, and more from your household water. Advanced Filtration - Replacement filter cartridges are independently tested to NSF standards 42, 53, 58, and 401. SmartFlow Technology - delivers more pure water, less water waste, and longer filter life than the average RO system. Stage 1 and Stage 3 carbon replacement filter cartridges for AOS-HERO-CHR (B0CCQF4QZX) systems. Replace filters every 6 months or 250 gallons, whichever comes first

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First Listed on Newegg	August 30, 2026

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Return for refund within: 30 days
Return for replacement within: 30 days
This item is covered by DrakeMount FortunaTech Parts Return Policy

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Item#: 9SIC8ZSM5R0017