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This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Wednesday, Apr 29
Size: 2 Count (Filter Replacement)
Features
- Replacement filter for: The Clean Water Filter - 2-Stage (AO-US-200) - Easily replace yourself without the need of a plumber.
- Advanced Filtration - Reduces up to 99% of 78 harmful contaminants including lead, mercury, asbestos, pesticides, pharmaceuticals, chlorine, and more.
- Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance.
- 2 Pack of Claryum filters which reduce harmful contaminants Those you can see, smell and taste, and those you cant for optimally clean water.
- WQA Certified to NSF standards 42, 53, and 401.
Description
Replacement filter for: The Clean Water Filter - 2-Stage (AO-US-200).
Material: Carbon
Product Dimensions: 2.25"D x 2.25"W x 5.5"H
Item Weight: 15.56 ounces
External Testing Certification: WQA
Product Benefits: Removes 78 harmful contaminants, including lead, mercury, asbestos, pesticides, pharmaceuticals, chlorine, and more See more
Model Number: AO-US-200-R
Product Benefits: Removes 78 harmful contaminants, including lead, mercury, asbestos, pesticides, pharmaceuticals, chlorine, and more
Brand Name: A. O. Smith
UPC: 811640030216
Included Components: Stage 1 & 2 Replacements
Manufacturer: AO Smith
Unit Count: 2 Count
Item Dimensions D x W x H: 2.25"D x 2.25"W x 5.5"H
Item Weight: 15.56 ounces
External Testing Certification: WQA
Material Type: Carbon
Compatible Water Purifier Models: A.O. Smith AO-US-200
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Apr 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 1 Count (Under Sink Filter System)
These filters are great! I just installed my second one. There was nothing wrong with the first one, bit the plumbing has to be replaced after 5 years. Mine was pushing 6 years and I didn't want to risk broken lines. Installing it is really easy and takes about an hour depending on space and if you have basic plumbing skills. Filter replacement takes 5 minutes.
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Reviewed in the United States on January 23, 2026 by Amazon Customer
Size: 1 Count (Under Sink Filter System)
After more than twenty years of having 5 gallon bottles of spring water delivered, the water started to have a strange taste/odor, so I canceled my delivery service and started looking for alternatives and the New York Times Wirecutter review recommended this one for removal of chlorine, plastics, and metals at a low price. Installation was straightforward (although I wish the lettered parts were included in the numbered diagram) and immediately after the recommended 10 minute flush out period my tap water, which is not horrible but has a chlorine taste, tasted great. I plan to fill a 3 gallon glass water cooler bottle with this filtered water to use with my existing cooler so I always have cold and hot water available as usual. My yearly cost for drinking water will be reduced by about 70% once I factor in the cost of replacing the filters every six months. Highly recommend!
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Reviewed in the United States on February 1, 2026 by William Payne
Size: 1 Count (Under Sink Filter System)
Excellent tasting filter. Easy to install. Wish the water flow was a little better but overall I am very happy to have it.
Reviewed in the United States on February 4, 2026 by Aaron R
Size: 2 Count (Filter Replacement)
Fits good, works good, good price. Comes with battery, which was convenient and unexpected.
Reviewed in the United States on February 20, 2026 by Ormond LaCour
Size: 1 Count (Under Sink Filter System)
The media could not be loaded. AO Smith Under Sink Water Filter... https://www.amazon.com/dp/B07NJ4P99G?ref=ppx_pop_mob_ap_share AO Smith filter was purchased after I read many positive reviews. I've been using it for about a month and so far it has been great with no leaks. I am looking forward to the savings I'll have because of the life and cost of these filters. Used with items below --> Straight Stop Valve, SUNGATOR... https://www.amazon.com/dp/B0CLY7K4LK?ref=ppx_pop_mob_ap_share Valve works great! 1 day after I received it I had a leak at a old tap made in my copper pipe mostly because I touched it after I added my water filter and I believe the seals inside were very old. So I cut the horrible mess of plumbing and added this valve inline and am happy to say no leaks and hopefully my copper pipes will be better with this setup and have a long leak free future. John Guest Speedfit 1/4 Inch... https://www.amazon.com/dp/B005S4NYI8?ref=ppx_pop_mob_ap_share JOHN GUEST 1/4" One Way Check... https://www.amazon.com/dp/B00AELC3MI?ref=ppx_pop_mob_ap_share John Guest fittings have a lot of positive reviews and customers said they are good quality. So far I have no reason to say they are not quality. Every John Guest fittings I have used so far has been leak free and just works. I do recommend these fittings over other questionable brands. John Guest 1/4 Inch x 25 Feet... https://www.amazon.com/dp/B00N4O434I?ref=ppx_pop_mob_ap_share The John Guest brand has a lot of positive reviews and customers said they are good quality. So far I have no reason to say they are not quality. This tubing looks nice and appears to be of quality material and works well for my needs for my refrigerator supply line. SUNGATOR End Cap, 1/2-Inch Push... https://www.amazon.com/dp/B082KXR42G?ref=ppx_pop_mob_ap_share I have confidence with these caps from my experience with the Sungator Straight Stop Valve. I purchased these in case of a emergency and if I need to temporarily cap a line before I can do a repair.
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Reviewed in the United States on July 18, 2025 by John John
Size: 1 Count (Under Sink Filter System)
I have just finished installing my unit this morning and cannot yet attest to its longevity, but I can say it looks nice and was relatively simple to install. IMPORTANTLY for anyone considering this product but concerned about reviews mentioning leaks upon installation, I want to suggest everyone to spend a few more dollars on some plumber’s thread tape. This is a thin plastic, not truly a tape as it has no adhesive, but will attach to itself. You wrap it around the threading 2-3 times at each connection point and this should prevent any leaks. When I first installed the unit, I had leaks from the brass t-connector as well as the connection from the white pipe to the faucet, but once I added this tape there were no more leaks. Save yourself a headache and just get the plumbers tape and use it from the start. I bought this tape years ago to replace my shower valves and it has proven useful numerous times. Bought mine from Home Depot. Another note: my product came with only one white tube, though the instructions listed two. Mine was long enough to simply cut in half to use for both ends of the filter. Just be sure to use a sharp knife, scissors or snips to cut and avoid over-crimping the tube. I used the cut ends for inserting into the filter and it works just fine.
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Reviewed in the United States on December 19, 2025 by Sarah Ansell
Size: 2 Count (Filter Replacement)
Good product, no bad taste on water
Reviewed in the United States on February 22, 2026 by Carlos E Rodriguez
Size: 2 Count (Filter Replacement)
We love our filtered water! We quit buying bottled water when we installed the water spicket that these filters go with. We change them out about every 6 months. They are worth the money to always have filtered water without needing to go to the store. Helpful tip- fill mason jars with the filtered water to always have refreshing, cold water on hand. I don't notice any taste or smell to our filtered water, which is really good because our city regularly has issues with tap water being smelly and discolored when the lake turns. They are easy to install- just take out the old ones, replace the battery- yes, it comes with the replacement battery- and then place the new ones in and you are ready to go. You should run the water for a few minutes before drinking the water to make sure any carbon dust is gone- that does give it a weird taste in the beginning. If you notice the water starts tasting like the lake or whatever your source of water is, then it's time to change them again, although the beep from the device should alert you first to change them out.
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Reviewed in the United States on October 30, 2025 by rlp