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AO Smith

AO Smith 2.5"x10" 5 Micron Carbon Block Sediment Water Filter Replacement Cartridge - 2 Pack - For Whole House Filtration Systems - AO-WH-PRE-RC2

    • Based on 659 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Nov 24
Order within 17 hours and 21 minutes
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Features

  • Filter for use with: Whole House Sediment Filter (AO-WH-PREV or AO-WH-PRE). Use only certified, genuine A. O. Smith filters for continued contaminant removal and system performance.
  • Longer lasting appliances - whole house filter system designed to reduce sediment from every tap.
  • 5 micron filtration - reduces sediment smaller than the human eye can see.
  • Replacements made easy - no plumber necessary. Replace filter every 6 months. Standard capacity (2.5") filter is perfect for household sizes of 1-4 people.
  • Includes 2-pack of replacement sediment filters.

Material: Carbon


Product Dimensions: 2.5"D x 5"W x 10"H


External Testing Certification: NSF


Brand: AO Smith


Product Dimensions: 2.5 x 5 x 10 inches


Item Weight: 1.85 pounds


Manufacturer: AO Smith


Item model number: REACH 2 6


Date First Available: April 24, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews

    • An excellent choice
I really did my homework on these filters. I have a 2 stage whole house filter system so I have to think carefully about what I use. For my first stage I have a sediment filter with added polyphosphate to deal with scaling (quality filter made by 3M). This A.O. Smith is my second filter. The things I have to worry most about in my water are chlorine and chlorine byproducts as well as atrazine. Note the following review is entirely in the context of needing a whole house filter with a very high flow rate. Carbon block filters can be NSF rated at 42 or 53. For the 42 standard, manufacturers can talk about reducing the problematic taste or appearance of contaminants. For the 53 standard, manufacturers can talk about the health effect of removed contaminants. The bad news for people with 10 x 2.5 housings is that, I don’t think, there is a single carbon filter on the market in this size, with a decent flow rate, that claims the NSF 53 standard compliance. I believe this is because the filter is simply too small to meet the standard. So we’re stuck with the NSF 42 standard. There is more bad news here. I don’t think there is a single filter in this size, with this flow rate, that is fully certified by NSF to meet the 42 standard. There appear to be three levels that NSF certifies. One is the materials used in the filter are to spec, the next is that the filter housing is to spec, and finally there is certification that the filter produces water that meets the standard. What you get with the A.O. filter here is certification from the NSF that the filter media meets spec. That appears to me to be as good as it gets after spending 1/2 of an entire Sunday researching this. On the upside this is, as far as I can tell, one of, if not the, highest flow rate filters in this size with an NSF certification. At 4 gpm it’s WAY higher than most filters in this class. The amount of water this filter will treat is not stated explicitly anywhere, but since they’re saying it might last 6 months they seem to be estimating it will last over 10,000 gallons which is amazing for this type of filter (I sincerely doubt it will last 10,000 gallons). However it does appear to be a true carbon block filter which could account for its longevity. So back to water quality. It’s easy enough to know if a filter like this is removing chlorine because of the taste and smell. However, at least for me, it’s much harder to know if it’s removing trihalomethane or atrazine. There is reason to believe it IS removing those contaminants because the mechanism of action is similar to how chlorine taste and smell are removed. However I can't be sure without doing expensive lab tests, that's what the NSF 53 standard is for. And again, I don't think there is a single filter in this form factor certified to the NSF 53 standard. You may spot something like the Matrikx and think "oh he's wrong" but that filter has a flow rate of .75 gpm, it's just not practical for whole house applications. Overall this filter is a very good choice. For the price and the size it may be the best filter choice if you need a high flow rate for whole house applications. 4 gpm will be able to work for 1 or two people but will struggle beyond that. On the negative side there is no mention of whether the carbon block is coconut shell so it probably isn't (coconut shell is preferred). Also, on first use I had about 5 gallons of water that came out pretty dark with carbon fines. This isn't necessarily bad but something to keep in mind if you use this as a pre-filter because those fines will not be good for the filter that come after this one. You'll want to flush from a faucet that doesn't not have a screen because I got two fairly large chunks of carbon in addition to fines in that first 5 gallons. ... show more
Reviewed in the United States on September 8, 2022 by Mike's Reviews
    • Solid whole house filters.
These filters are a good price and fit our whole house water filter from well water. A drop in water pressure is a good indication it needs replacing!
Reviewed in the United States on August 17, 2023 by Rachel P.
    • Perfect fit
Needed to replace and I normally buy from lowes and stay with the same brand but I found these and decided to try. They look 100% the same as the name brand. Fits and works perfectly
Reviewed in the United States on July 28, 2023 by Wendy
    • Water filter
Best one we have found
Reviewed in the United States on August 8, 2023 by Brenda
    • Great product
Easy to use and works great
Reviewed in the United States on July 14, 2023 by Amazon Customer
    • filter does what a filter does
Due to heavy sediment in my homes well i have to change this filter about every 2 weeks. They do the job!
Reviewed in the United States on June 22, 2023 by Brian Groppelli
    • No more chlorine odor
I'm using the filter on the kitchen cold water only rather than as a whole house filter. I had been using a Pur faucet mount filter but didn't like the flow rate or how often the filters needed replacing. For about the same cost, these filters last far longer and don't restrict the water flow.
Reviewed in the United States on April 19, 2023 by Ruth H Lucas
    • Great Filters
These filters are perfect for our small water heater. They are cheaper than Lowe's and now I don't have to worry they are out of stock.
Reviewed in the United States on May 2, 2023 by sidneyv123

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