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Watts Inline Water Filter 20,000 gallon Capacity- Inline Filter for refrigerator, Ice Maker, Under Sink, and Reduces Bad Taste, Odors, Chlorine and Sediment in Drinking Water

4.6 4.6 out of 5 stars 3,693 ratings
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Amazon's Choice in Under-Sink & Countertop Filtration by Watts Premier

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Water Filter

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Material Plastic
Product Dimensions 2.75"D x 6"W x 14"H
Item Weight 0.01 Ounces
External Testing Certification NSF, WQA, ANSI
Product Benefits Reduces chemicals and odors in drinking waters by 99.8%

About this item

  • Designed for use with refrigerators, ice-makers, RV, campers, boats, water fountains, water coolers, and commercial coffee makers
  • Compatible with all water supply using 1/4 inch lines. Easily connects to existing plumbing
  • Includes one 10” KDF Inline Filter and two 1/4 inch brass connectors
  • Reduces sediment and other particulates for better tasting drinking water. NSF Listed, Certified by WQA to NSF/ANSI 372 Lead Free and NSF/ANSI Standard 42
  • Recommended replacement every 6 months or 20,000 gallons

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 2.75 x 6 x 14 inches; 0.01 ounces
  • Item model number ‏ : ‎ 43000140
  • Date First Available ‏ : ‎ November 21, 2005
  • Manufacturer ‏ : ‎ Watts
  • ASIN ‏ : ‎ B000E77I0Y
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.6 4.6 out of 5 stars 3,693 ratings

Product Description

The Watts Inline Filter works with all water supply using ¼ inch lines and is perfect for residential and commercial ice makers as well as refrigerators, drinking fountains, coffee and tea brewers, motor homes and campers. This high capacity inline filter is certified for 20,000 gallons and is WQA certified for the reduction of chlorine taste and odors. The filter is easy-to-install and helps reduce scale build-up in appliances.


From the manufacturer

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Water Quality Solutions for Your Family

Improve the comfort, safety, and quality of life for your family with Watts solutions. For the past 145+ years, Watts has been providing people around the world with products, systems, and solutions that help convey, conserve, control, and safely use water.

At Watts, we help people install and maintain better systems, enhance water safety, and conserve critical resources through:

· Water Quality Solutions

· Plumbing & Flow Control Solutions

· Drainage Solutions

· HVAC & Hot Water

Why Watts?

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Protect your family

Nothing is more important than your family’s health and well-being. That’s why you need Watts water quality solutions, the ultimate protection against harmful contaminants in your water. Our innovative products help reduce lead levels, remove unwanted chemicals, and improve the taste and clarity of your water. With Watts, you can rest assured that you’re providing your family with the cleanest, safest, and most delicious water possible.

Improve Safety

Your home is your sanctuary, where you want to feel comfortable and safe at all times. That’s why you need Watts smart & connected solutions, the ultimate way to enhance your home environment. With our products that have IoT capability, you can easily monitor and adjust the temperatures of your water, heating, and cooling systems from anywhere, using your smartphone or tablet. Whether you’re at home, at work, or on vacation, you can always stay in control of your home’s comfort and safety with Watts.

Sustainable Solutions

With Watts, you can do more than just save money on your utility bills. You can also make a positive impact on the environment by reducing waste, saving electricity, and conserving water. Our energy-efficient products, systems, and solutions are designed to help you optimize your home’s performance and efficiency, while minimizing your carbon footprint. Whether it’s water heaters, faucets, valves, or sensors, you can trust Watts to deliver the best in energy efficiency and sustainability.

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Planning

Whatever your project needs, you can count on Watts to be there for you every step of the way. Whether you’re a DIY enthusiast or a professional installer, we have the expertise, products, and services to help you achieve your goals. Watts is more than just a brand, it’s a promise of quality and satisfaction.

Installation

Don’t let installation challenges stop you from achieving your project dreams. Whether you need technical assistance, product recommendations, or troubleshooting tips, Watts is always ready to help you. With our extensive experience, knowledge, and resources, we can provide you with the guidance and support you need to get your job done right. Trust Watts to make your installation easy and hassle-free.

Support

When you choose Watts, you’re choosing more than just water products. You’re choosing peace of mind that comes from knowing you have the best solutions for your home and family. Our products are designed to deliver reliability, durability, and performance, backed by our global reputation and expertise in water technologies. With Watts, you can enjoy the benefits of safe, clean, and efficient water for years to come.

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What's in the box

  • Inline Water Filter
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    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    3,693 global ratings

    Customers say

    Customers like the quality, ease of installation, taste and value of the water filter. They mention that it works great for about a year, it helps the ice taste better and that it's worth the money spent. Customers are also happy with water quality. That said, some complain about the leakage.

    AI-generated from the text of customer reviews

    430 customers mention371 positive59 negative

    Customers like the quality of the water filter. They say it works well, has a long useful life, and is a great product. Customers also mention that it helps their refrigerator and is terrific for their ice maker.

    "...It has been just over a year. Filter is still working very well." Read more

    "...The old one worked very well. The water still tastes fine after at least a year.Replacing ahead of schedule...." Read more

    "Terrific filter for your ice maker in your fridge and it lasts literally a lifetime...." Read more

    "...I turned on the water to the filter and checked for leaks. Everything looked good. All this took less than 20 minutes...." Read more

    205 customers mention191 positive14 negative

    Customers find the installation process of the potable water filter relatively easy. They mention that the initial hookup is simple with the fittings provided in the original kit. Some say that the filter can be installed in about 30 minutes.

    "Ease of installation. I used the filter on a commercial ice machine." Read more

    "...Assuming you already have the setup to use a filter, it is easy to install and all you need to provide are two wrenches or pliers...." Read more

    "...The install of the filter was very easy but it works like crap and I've attempted about 6 times to contact the mfr...." Read more

    "...Crystal clear, good tasting water. Easy install and replacement." Read more

    192 customers mention169 positive23 negative

    Customers like the taste of the water filter. They say it helps the ice taste better, and it does a good job of removing a funny taste and smell from tap water.

    "...The water tastes great and is odor-free...." Read more

    "...The old one worked very well. The water still tastes fine after at least a year.Replacing ahead of schedule...." Read more

    "...I assume it does as it’s labeled. The water tastes better with it." Read more

    "...Everything has been holding fine for a few months, and the water tastes clean (no chlorine)...." Read more

    128 customers mention110 positive18 negative

    Customers like the value of the water filter. They say it's easy to install, saves money, and worth the money spent. Customers also appreciate the filtration capacity relative to the cost and say it eliminates changing expensive fridge filters every six months.

    "Very fair price and works as described." Read more

    "...We are saving money and the water taste better...." Read more

    "...Regardless, it's still a great value when compared to bottled water (which on average has poorer quality than even unfiltered tap water), and is..." Read more

    "...Great product at a great price." Read more

    64 customers mention49 positive15 negative

    Customers like the water quality of the filter. They say the water is fresh and clear, and crystal clear. Some say that the water should be ultra pure. Overall, most are happy with the product and its ability to provide clean water.

    "...The water should be ultra pure now!..." Read more

    "...The water tastes great, is crystal clear, and the ice cubes are fully formed!" Read more

    "...It does make Glendale, Arizona water drinkable for me.I still like to chill the water for best flavor but I can drink it without chilling...." Read more

    "...Holy crap that's really bad water. I ran about 20 gallons or more through the refrigerator in the hopes of getting this contamination to drop...." Read more

    32 customers mention14 positive18 negative

    Customers have mixed opinions about the fit of the water filter. Some mention it's a perfect fit and easy to fit into their system, while others say the fittings were odd size and didn't fit.

    "...Furthermore, the brass ferrules would not fit into my 1/4" piping without drilling the inside of the pipe to make it fit...." Read more

    "I bought this filter for my refrigerator and it fit perfectly. It works very well. The water is nice and fresh." Read more

    "It's big and heavy - I am sure it will last as long as the manufacturer claims.But it has no sort of mounting bracket...." Read more

    "...n't sure if it was going to fit but I bought it anyway and it did fit and is perfect. The water tastes great so does the Ice...." Read more

    69 customers mention12 positive57 negative

    Customers are dissatisfied with the leakage of the potable water filter. They mention that it leaks like crazy, causing water to leak onto the electronics of the furnace. Some customers also report that the filter developed a pin hole leak after two years of use.

    "...My first few attempts at connecting everything resulted in VERY slow leaks from both ends; slow enough you could watch drops of water form and fall...." Read more

    "...This is my third filter and it has always leaked at this point. I turn the nuts more until the leaking stops...." Read more

    "...They only came with a couple of wraps and both of mine leaked (very slow drip)...." Read more

    "...Amazon product comments about disappointment filtration and leaky brass pipe fitting, no clue what they talking about...." Read more

    30 customers mention0 positive30 negative

    Customers are dissatisfied with the quality of the water filter. They mention that it cracks and ruptures easily. Some customers also report that the lower flange breaks off. Overall, customers are not happy with the product's quality and durability.

    "...Yet, it is unsettling that it can crack for no apparent reason and that is labeled in a very misleading manner." Read more

    "Last night it bursted and flooded my basement." Read more

    "...However, the cases tend to crack when tightening the NPT-to-compression fittings into the ends...." Read more

    "...Opened up top panel to see that a crack in the body / chassis of the filter had ruptured, allowing water under pressure to spray within the built..." Read more

    Working well so far; notes on tightening the threaded pipe inserts
    4 Stars
    Working well so far; notes on tightening the threaded pipe inserts
    I'm using this filter in front of an ice machine; i.e. one that continuously makes ice as the old ice melts. I'll come back and update my review once I get a better feel for how long it actually lasts in that type of setup versus a freezer ice maker that just uses water occasionally as you use ice. So far though the ice has zero smell or taste, which is not the case prior to adding the filter. I'll also come back and update my review once I get a feel for if it makes my ice machine have less buildup of crud at its six month cleaning intervals.On another subject; the fittings. The filter comes with two 3/8" to 1/4" fittings that you have to connect to each end. The male 3/8" is pre-wrapped with teflon tape. I threw some plumbers putty on anyway to be safe. The 1/4" side is a compression fitting that includes a brass insert meant to be used with polyethelene tubing. It is not meant to be used with metal tubing so you'd have to buy new fittings if that's what your plan is. You can use them with 1/4" compression connector ice machine hoses successfully as that's what I'm doing.The manual is very vague on how far you need to screw in the 3/8" side into the filter itself. The filter is plastic so of course I was worried if I went too far, I'd crack the shell or strip the threads. The manual simply says, in all caps, "DO NOT OVERTIGHTEN". Great. My first few attempts at connecting everything resulted in VERY slow leaks from both ends; slow enough you could watch drops of water form and fall. You actually need to screw the fittings in relatively far, past where the teflon tape has been wrapped. I uploaded an image to display just how far I had to tighten before they stopped leaking. The image is just a close-up of the filter on the left and connector on the right; click on the product and 'customer images' and you'll see it.Hope that helps you not get as frustrated as I did. :-)
    Thank you for your feedback
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    Top reviews from the United States

    Reviewed in the United States on March 25, 2024
    Style: Water FilterVerified Purchase
    Reviewed in the United States on July 16, 2012
    Style: Water FilterVerified Purchase
    Customer image
    5.0 out of 5 stars Filtered water tastes "refreshing"
    Reviewed in the United States on July 16, 2012
    We had two kinds of flakes in the water from our fridge: 1) Translucent flakes that floated; and 2) White flakes that sank. Thawed ice-cubes from the ice-maker had both kinds of flakes, and like the water it smelled terrible and was undrinkable.

    Thinking the translucent flakes may have resulted from bacterial/algal biofilms in the lines and the white flakes were mineral deposits, we changed the [[ASIN:B001ONHN02 filter]] within the fridge, and ran gallons of water through the new filter. This didn't help - the translucent flakes never disappeared and the white flakes came back 2-3 days. Ice-cubes remained as bad as they were before (here too, I dumped at least 10-15 loads of ice made over 2 weeks).

    Finally, as a last resort before getting a new fridge, I did the following after unhooking the fridge from the main water line:
    a) Pump two liters of bleach through the fridge water lines (letting the bleach sit in the line for 20-30 minutes).
    b) Pump several liters of clean water to flush the bleach.
    c) Pump two liters of hydrogen peroxide through the fridge water line, letting it sit for 30 minutes.
    d) Pump 10-20 liters of clean water to flush the peroxide.
    e) Replaced the [[ASIN:B001ONHN02 filter]] within the fridge.

    After reconnecting the main supply line, the water was clean for exactly two days before we started seeing very small white mineral flakes again. After reading the reviews here, I decided to install the [[ASIN:B000E77I0Y Watts filter]] as a pre-filter.

    I mounted the filter behind the refrigerator; two problems encountered by other reviewers are that an additional supply-line (connecting hose) or a mounting bracket are not provided with the filter. Supply-lines are readily available - Watts' makes [[ASIN:B00439HNGI these lines]] that are available from Amazon. The bracket is more troublesome. I was going to fashion something crude using zip-ties when I found that [[ASIN:B008KNDKOC 2.5 inch conduit hangers]] were the right diameter to hold the filter. I replaced the bolts/nuts on the conduit hanger with longer bolts/wingnuts to make loosening/tightening easier. All put together (supply line + conduit hangers), it cost about $12 to mount the filter. I've attached photographs to make my descriptions clearer.

    It has now been a month since the filter has been installed and the neither the water nor the ice from the fridge have flakes of either kind. The water tastes great and is odor-free.

    Its only been a month, so I cannot comment on the filters longevity, but so far its been great.

    Update - June 17, 2013

    It has been just over a year. Filter is still working very well.
    Images in this review
    Customer image Customer image Customer image
    Customer imageCustomer imageCustomer image
    138 people found this helpful
    Report
    Reviewed in the United States on August 20, 2010
    Style: Water FilterVerified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on August 17, 2013
    Style: Water FilterVerified Purchase
    Customer image
    4.0 out of 5 stars Working well so far; notes on tightening the threaded pipe inserts
    Reviewed in the United States on August 17, 2013
    I'm using this filter in front of an ice machine; i.e. one that continuously makes ice as the old ice melts. I'll come back and update my review once I get a better feel for how long it actually lasts in that type of setup versus a freezer ice maker that just uses water occasionally as you use ice. So far though the ice has zero smell or taste, which is not the case prior to adding the filter. I'll also come back and update my review once I get a feel for if it makes my ice machine have less buildup of crud at its six month cleaning intervals.

    On another subject; the fittings. The filter comes with two 3/8" to 1/4" fittings that you have to connect to each end. The male 3/8" is pre-wrapped with teflon tape. I threw some plumbers putty on anyway to be safe. The 1/4" side is a compression fitting that includes a brass insert meant to be used with polyethelene tubing. It is not meant to be used with metal tubing so you'd have to buy new fittings if that's what your plan is. You can use them with 1/4" compression connector ice machine hoses successfully as that's what I'm doing.

    The manual is very vague on how far you need to screw in the 3/8" side into the filter itself. The filter is plastic so of course I was worried if I went too far, I'd crack the shell or strip the threads. The manual simply says, in all caps, "DO NOT OVERTIGHTEN". Great. My first few attempts at connecting everything resulted in VERY slow leaks from both ends; slow enough you could watch drops of water form and fall. You actually need to screw the fittings in relatively far, past where the teflon tape has been wrapped. I uploaded an image to display just how far I had to tighten before they stopped leaking. The image is just a close-up of the filter on the left and connector on the right; click on the product and 'customer images' and you'll see it.

    Hope that helps you not get as frustrated as I did. :-)
    Images in this review
    Customer image
    Customer image
    8 people found this helpful
    Report
    Reviewed in the United States on February 13, 2024
    Style: Water FilterVerified Purchase
    Reviewed in the United States on March 24, 2024
    Style: Water FilterVerified Purchase

    Top reviews from other countries

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    Don C.
    5.0 out of 5 stars Works great
    Reviewed in Canada on January 6, 2024
    Style: Water FilterVerified Purchase
    Guille
    5.0 out of 5 stars Excelente Filtro, muy recomendable.
    Reviewed in Mexico on December 27, 2023
    Style: Water FilterVerified Purchase
    Roderick A Bolt
    5.0 out of 5 stars Great tasting water and ice through my fridge/freezer
    Reviewed in Australia on August 17, 2020
    Style: Water FilterVerified Purchase
    Ben Ban
    5.0 out of 5 stars Easy to install
    Reviewed in Canada on October 11, 2020
    Style: Water FilterVerified Purchase
    Ronald Anderson
    5.0 out of 5 stars Exactly as required
    Reviewed in Canada on February 12, 2024
    Style: Water FilterVerified Purchase