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KleenWater Dishwasher Water Filter, KW2510HW-resin Under Sink Filtration System, Cation Exchange Resin Filled Filters for Hard Water and Cloudy Film Residue on Dishes and Glasses

4.6 4.6 out of 5 stars 152 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Under-Sink & Countertop Filtration by KleenWater

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Purchase options and add-ons

Brand KleenWater
Special Feature Complete Dishwasher Water Filter
Package Information Faucet
Installation Type Under Sink
Material
resin
Included Components
Housing, Mounting Bracket, Wrench, Connection Hose, 3 Filter Cartridges See more

About this item

  • Softener Resin combats hard water and cloudy build-up on glassware
  • Convenient package including all necessary installation components
  • Ideal for commercial / residential dish washer systems
  • Includes housing, bracket, wrench, connections and three cartridges

Additional Details

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Date First Available ‏ : ‎ May 30, 2017
  • Manufacturer ‏ : ‎ KleenWater
  • ASIN ‏ : ‎ B07BDMNQ9N
  • Customer Reviews:
    4.6 4.6 out of 5 stars 152 ratings

From the brand


Product Description

dishwasher

Crystal Clear Dishes

The KW2510HW-resin Under Sink Complete Filtration System combats hard water and removed cloudy film residue leaving your dishes sparkly clean!

dishwasher filter kit

KleenWater Dishwasher Water Filter System with Resin Filters

Filters Hard Water and Cloudy Film Residue on Dishes and Glasses

Water with significant mineral content is considered hard. Private well water as well as municipally supplied public water can have excessive hardness content. Hard water typically causes aesthetic difficulties. One such difficulty is cloudy glassware and dishware. Our dishwasher hot water filtration package can substantially improve your glassware and dishware appearance. The KW2510-resin filter cartridge contains cation exchange resin that will remove the hardness ions yielding soft and spot-free water. It is important to use phosphate-free detergents with soft water. Most detergents today are phosphate-free.

Complete Kit Includes Everything Needed for Intsallation

Typical installation requires 20-25 minutes. Cartridges should be changed every 3 - 5 months.

Includes 3 Replacement Filters

KW2510-Resin Hard Water Softening Filter Cartridges - For High Hardness Applications

  • Softener Resin combats hard water and cloudy build-up on glassware
  • Ideal for residential dishwasher systems
  • Removes calcium and magnesium hardness
  • 1,200 grain hardness removal capacity
  • Recommended the cartridge be changed every 1 - 3 months depending on water hardness

Details and Specifications

  • KWHW2510 housing is made in Italy of reinforced polyamide
  • rated for maximum temperature or 180 degrees F
  • inlet / outlet is 3/4" FPT reduced to 3/8 inch
  • A pressure relief valve allows easy cartridge change
  • filter dimensions are approximately 5 inch (W) X 12 inch (L)

What's in the box

  • Housing, Mounting Bracket, Wrench, Connection Hose, 3 Filter Cartridges
  • Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    152 global ratings

    Customers say

    Customers like the ease of installation, performance, and streaks of the water purification unit. They mention that it comes with everything you need to install, and that it works very well. They also appreciate the value for money, saying that it saves them a ton of money.

    AI-generated from the text of customer reviews

    22 customers mention22 positive0 negative

    Customers find the installation of the water purification unit to be easy. They mention that the kit comes with everything they need to install the unit.

    "...that sounds but it's really been a treat to watch and see how easy it is to install and then how amazing my dishes look." Read more

    "...The installation was easy and took less than 30 minutes...." Read more

    "...It is not that hard to install. In my case, I had to order a 3/8 to 3/8 female water supply hose, stainless steel, which was about 12 bucks...." Read more

    "...This filter is worth every penny and the minimal effort to install. Time to stock up on the filter cartridges now." Read more

    20 customers mention20 positive0 negative

    Customers are satisfied with the performance of the water purification unit. They mention that it works well, has removed all the scale from their dishwasher, and has unbelievable performance. Some say that it's easy to use, install, and replace filters.

    "...I am beyond pleased with this purchase. Works perfectly and saved us a ton of money." Read more

    "...First, I conclude that this unit works, and works well. It softens water as strip 3 had the lowest overall hardness of all the strips...." Read more

    "...I’ll change that filter monthly if need be. The results were that impressive. I would highly recommend this product. Plus it’s made in Italy!" Read more

    "...I ordered this product out of desperation, and have been thrilled with the results...." Read more

    17 customers mention17 positive0 negative

    Customers are satisfied with the streaks in the dishwasher. They mention that it cleans the dishes well, and leaves them spotless. Some say that the dishwasher has made great improvements to its cleansing ability, and that they no longer have to rewash the dishes after they come out of the washer.

    "...Our dishes come out 100% clear. The difference is night and day. I'm no longer embarrassed serving our guests food and beverages with our dishes...." Read more

    "...All my dishes are impeccably clean and clear, even my plasticware." Read more

    "...It even made the rollers work difficult. But now the inside is spotless. The rollers are free and clear...." Read more

    "...Every dish came out spotless and even felt different than if I had washed them by hand...." Read more

    12 customers mention12 positive0 negative

    Customers are satisfied with the value of the water purification unit. They mention that it works perfectly and saves them a ton of money. Some say that it's an economical solution and easy to install. Overall, most are happy with their purchase and recommend it to others.

    "...This is a must buy and the price is right. I have years of beautiful dishes thanks to this. I can't wait to buy more filters!..." Read more

    "...I am beyond pleased with this purchase. Works perfectly and saved us a ton of money." Read more

    "...This filter is worth every penny and the minimal effort to install. Time to stock up on the filter cartridges now." Read more

    "...Amazing and worth every penny!" Read more

    It works, backed by "science"
    4 Stars
    It works, backed by "science"
    KleenWater Dishwasher Water Filter, KW2510HW-resin Under Sink Filtration System (RESIN)Summary: Works great and is easy to install. However, the connector hose was missing from mine and the customer service number, while responsive, did not address the issue - 4 stars. Read further for my experiments that show that this works. I hope this helps someone else.Hello.We had a strong smell coming from our dishwasher and lingering on our dishes. Although the smell will be different for different people, to us it smells like river water, or a wet dog. We live in an area with hard water, and the problem has gotten particularly bad this summer, so we suspected that hard water was contributing to the smelly dishes. We brought in a water testing company, and they verified that we had high hardness (but everything else was okay - lead, bacteria, chlorine, etc.).Since the dishwasher smell was our major concern, we decided to invest in this unit to see if it fixed the problem prior to investing hundreds of dollars in a new dishwasher or thousands of dollars in a whole house water softener system. After all, if the smell was not caused in part by hard water, we did not want to waste our money on a more expensive solution.Specifically, I bought the resin unit.The unit arrived and included a basic invoice with a support phone number on it. It lacks installation instructions, but it did come with a print out of what the unit looks like installed with some basic words describing where to make the connections. It is not that hard to install. In my case, I had to order a 3/8 to 3/8 female water supply hose, stainless steel, which was about 12 bucks. The fact that it did not come with a hose when one was depicted, and not receiving help from the help line in this matter, is the only reason for my 4 star review.When installing it, make sure you leave enough clearance between the cabinet wall and the unit itself to be able to fit the included removal wrench around the collar. Also, make sure you leave enough clearance on the bottom of the unit, about 3 inches, to allow the cylinder to come down fully from the top, important when you need to change the filter. The only other advice I would give is to use thread tape to ensure a good connection, check all the connections for leaking after you run a dish cycle, and also to open up the air bleed valve a little bit to allow the filter chamber to fill with water right after installation. After installation, run your dishwasher on a rinse cycle at least three or four times to clear any air from the line and to make sure your hookups are not leaking.After the first rinse cycle, I noticed that there was soapy foam in the bottom of my dishwasher. It took about four rinse cycles to get rid of this. I don't think it is in the filter, I think it is leftover soap residue now positively reacting with the softer water and finally coming to "life" after years of only having hard water. (I routinely had to wash with two soap biscuits, because the dishes never seemed to get fully clean on only one biscuit.)Time for some science. I wanted to see if this thing actually was softening the water. I have some swimming pool test strips that include a test for hard water. Before describing my procedure, know that my dishwasher rinse cycle starts by draining any water in the bottom of the unit first, then it fills its chamber with water from its source and sloshes things around, (it may perform a second drain/fill cycle), and at the very end it drains the supply water back out again. The water drains as a solid stream into my garbage disposal, unimpeded by anything else.I performed three tests: (1) I filled a 2-gallon picture with hot tap water and measured its hardness; (2) I poured that tap water into at the bottom of the dishwasher. I started the dishwasher rinse cycle; when it started its initial drain cycle, I put a test strip in the drainage stream coming into the garbage disposal to measure the hardness of the draining tap water; then (3) I put a test strip in a final drainage stream to measure the hardness of the draining filtered water.The results are shown in a picture that hopefully attaches to this. The top square on the test strip is the hardness measure. For my test kit, the redder the square, the harder the water, and the more green or gray the square, the softer the water. Strip #1, the test of the hot tap water in the pitcher, showed about a medium level of hardness. Strip #2, the hot tap water being drained back out again, showed a higher level of hardness, which was a little surprising. Strip #3 showed a much lower hardness than strip number one.First, I conclude that this unit works, and works well. It softens water as strip 3 had the lowest overall hardness of all the strips.The puzzling part was why the hot tap water I added came out with a higher hardness than what it went in with. I am guessing that since I just put the filter in, that the dishwasher has a lot of hard scale that it is starting to get rid of. The dishwasher has been installed and in use for about three years with no filtering. Even so, I have spent the last three weeks adding dishwasher cleaners, vinegar, and even Tang, in an attempt to clean the dishwasher. It makes sense to me that there are still quantities of water in the dishwasher, in one of its various storage bladders, that account for this hardness. It could also be that the rinse agent and/or leftover soap residue contributed a little to this problem, despite me running 4 rinse cycles before this test.Second, since the unit works and the dishwasher now has soft water flowing in it, it may take several wash cycles to remediate any additional hardness deposits and possibly smell - if hardness is causing/contributing to the smell. My experience with things like this is that it could take weeks to see a difference.Last, thinking more about the soapy bubbles after the first couple of rinses, I am guessing that softer water makes soap more effective. My guess (I'm not a chemist) is that the residues that have been there for years are finally getting a chance to come loose. If I'm right, then one biscuit should be sufficient going forward, leading to cleaner dishes and a cost savings. (I am NOT a compensated endorser for this product, just a regular joe. I have studied engineering if it matters.)In conclusion, if you think you have hard water, have somebody come out and test for it. If that is the case and your main concern is the smell of your dishwasher, well, I don't know yet if hard water is the cause of our smell, but I do think that the soap will work more effectively in softer water leading to cleaner dishes prior to the dry cycle, meaning less dirty water steaming up and settling on the dishes, so I should be gaining some benefit regardless. (Several sites say soap works better in soft water, so much so that it's easy to use too much soap. We shall see.) It's certainly worth the $130 to find out.
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    Reviewed in the United States on November 19, 2023
    One person found this helpful
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    Reviewed in the United States on August 12, 2018
    Customer image
    5.0 out of 5 stars Completely gets rid of hardwater stains on dishes
    Reviewed in the United States on August 12, 2018
    PHOTOS:
    Left: Glass before installing water filter
    Right: Glass after installing water filter

    We've been having issues with our dishes not coming out clean for the past few years, and didn't know the cause for the longest time. We tried different detergents, jet dry rinse aid, we even tried adding calcium remover instead of jet dry out of pure desperation. We cleaned the interior of the dishwasher several times and yet our dishes would come out covered in a disgusting white film every time. We kept thinking it was soap scum and started contemplating buying a new dishwasher altogether since it's over 10 years old now. Thankfully before spending thousands on a new dishwasher, my husband googled other causes for the white film and discovered it was probably hard water. We don't have a water softener so that explanation made sense...instead of spending a ton of money on a water softener for the whole house we found this alternative that filters water on the dishwasher only. We were skeptical it would work especially on a product with no reviews but as I said, we were desperate and not exactly thrilled at the prospect of dropping thousands of dollars. I'm happy to say this filter COMPLETELY resolved the white film problem. Our dishes come out 100% clear. The difference is night and day. I'm no longer embarrassed serving our guests food and beverages with our dishes. Before I would have to basically have to take the dishes out of the cabinet and wash by hand before serving, which doesn't exactly instill a lot of confidence in the cleaniness of the dishes....no more washing dishes by hand after the fact. And we can finally wash our pots and pans in the dishwasher now which is great because it sucks washing those by hand. I am beyond pleased with this purchase. Works perfectly and saved us a ton of money.
    Images in this review
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    21 people found this helpful
    Report
    Reviewed in the United States on October 16, 2023
    Reviewed in the United States on September 2, 2023
    Customer image
    4.0 out of 5 stars It works, backed by "science"
    Reviewed in the United States on September 2, 2023
    KleenWater Dishwasher Water Filter, KW2510HW-resin Under Sink Filtration System (RESIN)

    Summary: Works great and is easy to install. However, the connector hose was missing from mine and the customer service number, while responsive, did not address the issue - 4 stars. Read further for my experiments that show that this works. I hope this helps someone else.

    Hello.

    We had a strong smell coming from our dishwasher and lingering on our dishes. Although the smell will be different for different people, to us it smells like river water, or a wet dog. We live in an area with hard water, and the problem has gotten particularly bad this summer, so we suspected that hard water was contributing to the smelly dishes. We brought in a water testing company, and they verified that we had high hardness (but everything else was okay - lead, bacteria, chlorine, etc.).

    Since the dishwasher smell was our major concern, we decided to invest in this unit to see if it fixed the problem prior to investing hundreds of dollars in a new dishwasher or thousands of dollars in a whole house water softener system. After all, if the smell was not caused in part by hard water, we did not want to waste our money on a more expensive solution.

    Specifically, I bought the resin unit.

    The unit arrived and included a basic invoice with a support phone number on it. It lacks installation instructions, but it did come with a print out of what the unit looks like installed with some basic words describing where to make the connections. It is not that hard to install. In my case, I had to order a 3/8 to 3/8 female water supply hose, stainless steel, which was about 12 bucks. The fact that it did not come with a hose when one was depicted, and not receiving help from the help line in this matter, is the only reason for my 4 star review.

    When installing it, make sure you leave enough clearance between the cabinet wall and the unit itself to be able to fit the included removal wrench around the collar. Also, make sure you leave enough clearance on the bottom of the unit, about 3 inches, to allow the cylinder to come down fully from the top, important when you need to change the filter. The only other advice I would give is to use thread tape to ensure a good connection, check all the connections for leaking after you run a dish cycle, and also to open up the air bleed valve a little bit to allow the filter chamber to fill with water right after installation. After installation, run your dishwasher on a rinse cycle at least three or four times to clear any air from the line and to make sure your hookups are not leaking.

    After the first rinse cycle, I noticed that there was soapy foam in the bottom of my dishwasher. It took about four rinse cycles to get rid of this. I don't think it is in the filter, I think it is leftover soap residue now positively reacting with the softer water and finally coming to "life" after years of only having hard water. (I routinely had to wash with two soap biscuits, because the dishes never seemed to get fully clean on only one biscuit.)

    Time for some science. I wanted to see if this thing actually was softening the water. I have some swimming pool test strips that include a test for hard water. Before describing my procedure, know that my dishwasher rinse cycle starts by draining any water in the bottom of the unit first, then it fills its chamber with water from its source and sloshes things around, (it may perform a second drain/fill cycle), and at the very end it drains the supply water back out again. The water drains as a solid stream into my garbage disposal, unimpeded by anything else.

    I performed three tests: (1) I filled a 2-gallon picture with hot tap water and measured its hardness; (2) I poured that tap water into at the bottom of the dishwasher. I started the dishwasher rinse cycle; when it started its initial drain cycle, I put a test strip in the drainage stream coming into the garbage disposal to measure the hardness of the draining tap water; then (3) I put a test strip in a final drainage stream to measure the hardness of the draining filtered water.

    The results are shown in a picture that hopefully attaches to this. The top square on the test strip is the hardness measure. For my test kit, the redder the square, the harder the water, and the more green or gray the square, the softer the water. Strip #1, the test of the hot tap water in the pitcher, showed about a medium level of hardness. Strip #2, the hot tap water being drained back out again, showed a higher level of hardness, which was a little surprising. Strip #3 showed a much lower hardness than strip number one.

    First, I conclude that this unit works, and works well. It softens water as strip 3 had the lowest overall hardness of all the strips.

    The puzzling part was why the hot tap water I added came out with a higher hardness than what it went in with. I am guessing that since I just put the filter in, that the dishwasher has a lot of hard scale that it is starting to get rid of. The dishwasher has been installed and in use for about three years with no filtering. Even so, I have spent the last three weeks adding dishwasher cleaners, vinegar, and even Tang, in an attempt to clean the dishwasher. It makes sense to me that there are still quantities of water in the dishwasher, in one of its various storage bladders, that account for this hardness. It could also be that the rinse agent and/or leftover soap residue contributed a little to this problem, despite me running 4 rinse cycles before this test.

    Second, since the unit works and the dishwasher now has soft water flowing in it, it may take several wash cycles to remediate any additional hardness deposits and possibly smell - if hardness is causing/contributing to the smell. My experience with things like this is that it could take weeks to see a difference.

    Last, thinking more about the soapy bubbles after the first couple of rinses, I am guessing that softer water makes soap more effective. My guess (I'm not a chemist) is that the residues that have been there for years are finally getting a chance to come loose. If I'm right, then one biscuit should be sufficient going forward, leading to cleaner dishes and a cost savings. (I am NOT a compensated endorser for this product, just a regular joe. I have studied engineering if it matters.)

    In conclusion, if you think you have hard water, have somebody come out and test for it. If that is the case and your main concern is the smell of your dishwasher, well, I don't know yet if hard water is the cause of our smell, but I do think that the soap will work more effectively in softer water leading to cleaner dishes prior to the dry cycle, meaning less dirty water steaming up and settling on the dishes, so I should be gaining some benefit regardless. (Several sites say soap works better in soft water, so much so that it's easy to use too much soap. We shall see.) It's certainly worth the $130 to find out.
    Images in this review
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    3 people found this helpful
    Report
    Reviewed in the United States on January 4, 2024
    Reviewed in the United States on November 27, 2022
    Customer image
    5.0 out of 5 stars Absolutely Works!
    Reviewed in the United States on November 27, 2022
    Unbelievable performance. Completely works. I have extremely hard water here and can’t install a whole house system. I should have taken a before pic of my dishwasher and glasses. They would come out white and have very thick scaling. The inside of my dishwasher has a very fine thin white coat over everything. It even made the rollers work difficult. But now the inside is spotless. The rollers are free and clear. And most of all my dishes come out cleaner with no residue at all. I’m sure I won’t make the 3-5 month service schedule with how hard the town water is here. But I don’t care. I’ll change that filter monthly if need be. The results were that impressive. I would highly recommend this product. Plus it’s made in Italy!
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