The Best watts inline water filters of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best watts inline water filters of 2022. Check our ranking below.

2,556 (random) Reviews Scanned

Rank No. #1

Watts Premier 20,000 Gallon Inline Water Filter with Two 1/4" Brass Connectors for Refrigerator, Ice Maker, RV, Camper, Water Cooler, Fountain, Reduces Bad Taste, Odors, Chlorine and Sediment

HIGH CAPACITY FILTER: Improve water quality with the Watts Premier Inline Water Filter. Boasting a high capacity of 20,000 gallons, this filter reduces sentiment and other particulates, as well as helps reduce scale build-up in appliances and inhibits bacterial growth, resulting in better-tasting drinking water.
KDF TECHNOLOGY: This inline chlorine filter uses a KDF (Kinetic Degradation Fluxion) Fluid Treatment for filtration. KDF is a high-purity copper-zinc formulation that effectively employs redox (oxidationeduction) to eliminate chemicals that give objectionable odors or tastes to water, such as hydrogen sulfide and chlorine.
VERSATILE COMPATIBILITY: This filter works seamlessly with all water supply systems utilizing 1/4" lines, making it ideal for a wide range of residential and commercial applications, including but not limited to refrigerators, ice makers, RVs, campers, coffee makers and tea brewers, water fountains, and water coolers.
EASY INSTALLATION: Designed for hassle-free installation, this product comes with one 10" KDF filter with two 1/4" brass connectors/fittings and easily connects to existing plumbing systems. To maintain optimal performance, it should be replaced every 6 months or 20,000 gallons.
THE PREMIER DIFFERENCE: Since our founding in 1989, Premier has been dedicated to the design, development, and marketing of high-quality water filtration systems that exceed industry standards. Following our Watts Water Technologies in 2001, our audience and influence have only expanded, solidifying Watts Premier as a trusted leader in the industry.

SaleRank No. #2

AQUA CREST 5 Years Capacity -Inline Water Filter for Refrigerator with 1/4-Inch Direct Connect Fittings, Idea for Ice Maker, RV, Refrigerator, RO System, In Line Water Line Filter, Reduces PFAS/PFOA

𝐌𝐮𝐥𝐭𝐢𝐩𝐥𝐞 𝐮𝐬𝐞𝐬: The AQUA CREST Inline Water Filter can be used in Refrigerators, Ice Makers, Coffee Makers, Drinking Water Fountains, Water Coolers, Beverage Equipment, Sink Faucets, RV, Campers, Boats and RO System. Compatible with most refrigerator filter brands such as Samsung, GE, LG, Whirlpool, Frigidaire, and so on.
𝐒𝐢𝐦𝐩𝐥𝐞 𝐢𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: The in line water line filter comes with both 1/4” compression and push-to-connect fittings (7/16" adapter fitting) for plastic or copper water lines. You can install the filter with a single twist, without cutting the tubing. 𝗡𝗼𝘁𝗲: Please insert the PE tube into the filter cartridge for 20mm, which can prevent water leakage effectively.
𝟓-𝐘𝐞𝐚𝐫 𝐒𝐞𝐫𝐯𝐢𝐜𝐞 𝐋𝐢𝐟𝐞: This inline water filter for refrigerator has a service life of 5 years or 5,000 gallons( This may vary based on water conditions). By spending an average of 0.01 per day, you can enjoy great-tasting water for a long time. Less expense, better filtration. 𝐍𝐨𝐭𝐞: This system will NOT reduce Total Dissolved Solids (TDS).
𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐭 𝐟𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐬𝐮𝐩𝐞𝐫𝐢𝐨𝐫 𝐦𝐚𝐭𝐞𝐫𝐢𝐚𝐥: In line water line filter employs a polyester membrane with a fine pore diameter and a 0.5 micron coconut shell activated carbon block, can effectively reduce chlorine, PFAS, PFOA/PFOS, taste and odor, rust, suspended solids, and colloids. It improves the taste of water from your refrigerator dispenser. BPA-free and lead-free material ensures product safety.
𝐀𝐥𝐥-𝐢𝐧𝐜𝐥𝐮𝐬𝐢𝐯𝐞 𝐩𝐚𝐜𝐤𝐢𝐧𝐠 𝐥𝐢𝐬𝐭: 1/4” PE tubing, 1/4” compression and push-to-connect fittings (7/16" adapter fitting), a 1/4” compression hex nut, a sleeve and an insert.

SaleRank No. #3

Watts Premier Bi-Annual Standard RO 5-Stage & 6-Stage Premium Carbon Block Filtration Kit for Reverse Osmosis System, Sediment Filter, 2 Carbon Pre-Filters, 10" GAC Inline Post-Filter, Housing Wrench

BI-ANNUAL CARBON BLOCK REPLACEMENT KIT: Say goodbye to unpleasant tastes and odors with the Watts Premier Bi-Annual Carbon Block Premium Filter Kit, a six-month supply of 3 types of filters that are tailored for specific filtration purposes, collectively ensuring crystal clear, great-tasting drinking water every time. These filters are designed for specific use with Watts Premier RO-TFM-5SV (500016, 500032), WP-5 (500023), and WP5-50 (500057) Reverse Osmosis Systems.
HIGHLY EFFECTIVE FILTRATION: This kit includes one 5-Micron Sediment Filter (WP104017) for reducing dirt, silt, and rust that affects the taste and appearance of your water; two 5-Micron Activated Carbon Pre-Filters (WP101009) for conditioning the water and reducing chlorine tastes and odors; one standard filter wrench to assist with opening of the filter housings.
FINAL FILTER: Also includes one 10" GAC (Granular Activated Carbon) Inline Post-Filter (WP560010), a final filter that is most effective at removing chemicals that give objectionable odors or tastes to water, such as hydrogen sulfide (rotten eggs odor) or chlorine; they are not effective at removing minerals, salts, and dissolved inorganic compounds. The filter includes 1/4" FNTP connections, though a compression tee is not included.
QUALITY CONSTRUCTION: These durable filters are crafted from high-quality materials for maximum filtration. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing sediment and carbon pre-filters every 6 months and the GAC post-filter once a year.
THE PREMIER DIFFERENCE: Since our founding in 1989, Premier has been dedicated to the design, development, and marketing of high-quality water filtration systems that exceed industry standards. Following our Watts Water Technologies in 2001, our audience and influence have only expanded, solidifying Watts Premier as a trusted leader in the industry.

SaleRank No. #4

Watts Premier Compatible 10" Replacement In-line Water Filter, Service Flow Rate 0.75 GPM (Gallons Per Minute), 1200 Gallon Capacity, For Refrigerators and Ice Makers

IN-LINE FILTER: Improve water quality with the Watts Premier Compatible Replacement Inline Water Filter. This 10" filter reduces chlorine taste and odor, sediment, and rust, resulting in better-tasting drinking water.
KDF TECHNOLOGY: This inline chlorine filter uses a KDF (Kinetic Degradation Fluxion) Fluid Treatment. KDF is a high-purity copper-zinc formulation that effectively employs redox to eliminate chemicals that give objectionable odors or tastes to water.
SPECIFIC APPLICATIONS: With a service flow of 0.75 GPM and capacity of 1,200 gallons, this filter is particularly suited for use with refrigerators and ice makers.
QUALITY CONSTRUCTION: This durable filter is crafted from high-quality materials for maximum filtration. Filter life may vary based upon local water conditions or use patterns.
THE PREMIER DIFFERENCE: Founded in 1989, Premier is dedicated to the design, development, and marketing of premium water filtration systems. Following our Watts Water Technologies in 2001, our efforts helped solidify Watts Premier as an industry leader.

SaleRank No. #5

Watts Premier Annual 7-Pack Standard Water Filter Replacement Kit for RO-TFM-5SV, WP-ST6DM, WP-5, WP5-50 Reverse Osmosis System, 2 Sediment Filters, 4 Carbon Pre-Filters, GAC Inline Post-Filter

ANNUAL FILTER REPLACEMENT KIT: Say goodbye to unpleasant tastes and odors with the Watts Premier Annual 7-Pack Standard Water Filter Replacement Kit, a one-year supply of 3 types of filters that are tailored for specific filtration purposes, collectively ensuring crystal clear, great-tasting drinking water every time.
HIGHLY EFFECTIVE FILTRATION: This kit includes two 5-Micron Sediment Filters (WP104017) for reducing dirt, silt, and rust that affects the taste and appearance of your water; four 5-Micron Activated Carbon Pre-Filters (WP101009) for conditioning the water and reducing chlorine tastes and odors; one 10" GAC (Granular Activated Carbon) Inline Post-Filter (WP100014) for removing chemicals that give objectionable odors or tastes to water, such as hydrogen sulfide or chlorine.
VERSATILE COMPATIBILITY: These filters are designed for specific use with Watts Premier's 5-stage (WP500032) and 6-stage (WP521934) Reverse Osmosis Systems but are also conveniently compatible with any standard 10" filter housing for under sink home filtration systems.
QUALITY CONSTRUCTION: These durable filters are crafted from high-quality materials for maximum filtration, with the carbon filters constructed from NSF certified coconut shell activated carbon. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing sediment and carbon pre-filters every 6 months and the GAC post-filter once a year.
THE PREMIER DIFFERENCE: Since our founding in 1989, Premier has been dedicated to the design, development, and marketing of high-quality water filtration systems that exceed industry standards. Following our Watts Water Technologies in 2001, our audience and influence have only expanded, solidifying Watts Premier as a trusted leader in the industry.

SaleRank No. #6

Watts Water Technologies (FP10GT) in-Line Carbon Filter Cartridge (1201.11)

Fits many OEM applications
Package Dimensions: 32.512 L x 7.62 H x 7.874 W (centimeters)
Package Weight: 0.9 pounds
Country of Origin: Taiwan, Province Of China

Rank No. #7

Watts Water Technologies (FP12GKE) Exterior in-Line Garden Hose Filter

Equipped with garden hose fittings to install outside RV or boat to water hose
Package Weight: 1.075 kilograms
Package Dimensions: 36.0 L x 6.0 H x 14.2 W (centimeters)
Part Number: FP12GKE

SaleRank No. #8

Hydronix ICF-10 RO Reverse Osmosis Post Polishing, Fridge and Ice Inline Coconut GAC Water Filter, 2000 Gal, 1/4" NPT

2,000 gallon service life (or one year)
Effective Chlorine, Taste and Odor Reduction
Made with NSF Certified Coconut Shell Carbon
1/4" NPT Ports
For Post / Polish RO Systems, Fridge, Ice, or any Point Of Use application

Rank No. #9

AQUACREST In-Line Water Filter for Refrigerator and Ice Maker, 5 years or 10,000 Gallons High Capacity, 1/4-Inch Direct Connect Fittings, Reduces Chlorine, Bad Taste & Odor

【Multiple uses】 This inline water filter meets your various needs in different situations. It is ideal for refrigerator, ice makers, RVs, boats, etc. With a 1/4” PE tubing, it is compatible with GE GXRTDR, Culligan IC-100A, Omnipure K2533JJ, Samsung DA29-10105J, Whirlpool WHKF-IMTO, WSE-100, IL-IM-01, WIC-6A, R200, DD-7098, EF-9603, K2533JJ, 5231JA2010A, 5231JA2010B, 5231JA2012A, WSI-1, USC100. [1]
【Efficient filtration and superior material】 The AQUA CREST inline water filter for refrigerator and ice maker employs granular active carbon which is made of natural coconut shell with a high filtration accuracy. The filter effectively reduces chlorine, taste and odor, rust, suspended solids, and colloids.[2] It improves the taste of water from your refrigerator dispenser. BPA-free and lead-free materials used ensure product safety.
【Get a Longer Service Life Filter】 The in-line water filter has an impressive extended lifespan of 5 years or 10,000 gallons.[3] Now you can enjoy great-tasting water for a longer time with less cost. The inline water filter’s lifespan varies according to the local water quality.
【Simple installation】 The external inline water filter for refrigerator and ice maker protects the inlet water of refrigerators. It also comes with both 1/4” compression and push-to-connect fittings for plastic or copper water lines. You can install the in line water line filter with a single twist, without cutting the tubing. 𝗡𝗼𝘁𝗲: Please insert the PE tube into the filter cartridge for 20mm, which can prevent water leakage effectively. Note: This system will NOT reduce Total Dissolved Solids (TDS).
【All-inclusive packing list】 The complete accessories are included with the filter out of the box. All the components you may need are included: a 1/4” compression and push-to-connect fittings, a 1/4” compression hex nut, a sleeve, an insert, and a 1/4” PE tubing. Only one pack settles all your worries.

Rank No. #10

FLOWPURE WATTS FP10GKT WATER FILTER INLINE TD3

Last update on 2025-03-13 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best watts inline water filters?

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This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of watts inline water filters has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an watts inline water filters?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your watts inline water filters.
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Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their watts inline water filters.
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Product Reliability: How sturdy and durable an watts inline water filters is should be an indication of how long it will work out for you.

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The Best watts inline water filters of 2022 – Reviewed and Top Rated

How Do You Buy The Best watts inline water filters?

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