This A. O. Smith RO Membrane Replacement is engineered specifically for the AOS-HERO-CHR reverse osmosis under-sink filtration system to deliver superior water purification. It effectively reduces up to 99% of over 90 harmful contaminants such as chlorine, chloramine, lead, pesticides, PFOA/PFOS, cysts, microplastics, mercury, asbestos, pharmaceuticals, and more. The membrane is independently tested and certified to NSF/ANSI standards 42, 53, 58, and 401 ensuring high-quality filtration performance. Designed for residential use, this replacement membrane maintains optimal system efficiency and water quality when replaced every 12 months or after filtering 730 gallons. Its durable plastic construction in gray color fits seamlessly into your existing system. Using only genuine A. O. Smith replacement filters guarantees continued contaminant removal and reliable operation of your reverse osmosis system.

Upgrade your water quality today with the A. O. Smith RO Membrane Replacement—order now for clean and healthy water.

Product Dimensions:

3.25 x 3.25 x 12.90 in

1.80 lbs

Shipping Dimensions:

13.31 x 3.43 x 3.39 in