Culligan FM-15A Faucet Filter Review

Best faucet water filter

  • Low annual filter cost
  • NSF certified
  • Durable, with a two-year warranty
  • Low flow rate
  • Doesn't fit some faucets
  • No filter-change indicator

Bottom line

Experts say the Culligan Faucet Filter FM-15A is one of the best faucet-mount water filter units. Its durability, budget price, low annual filter cost and long filter life all combine to make it a great value. Users love the taste of the water and automatic switch, but both experts and owners note the very slow flow rate. It also won't fit on all faucets.

Breaking it down


Excellent filtering, simple design. Bells and whistles take a backseat to filtering performance in the Culligan FM-15A. In addition to reducing bad taste and odor -- including all Class I particulates -- it's NSF-certified to reduce parasites, lead, lindane, atrazine and turbidity. Testers at a major consumer organization rate it as one of the best filters across the board. Owners say they see a noticeable improvement in the taste of their water, particularly those who felt their tap water tasted too much of chlorine. Both experts and owners, however, note the very slow flow rate of the FM-15A, a common issue with faucet-mount filters. It's not the most attractive thing you'll ever see, some say, but most don't seem to mind.

Ease of use

Easy to install -- if it fits your faucet. The Culligan FM-15A gets its best reviews for being easy to hook up, although there are a small number who disagree. Owners say the included faucet adaptors fit most sinks, but not all; some were able to find the proper adaptor at their local hardware store, others had to return the filter and find another solution. The filter includes a diverter valve to start filtering the water, and most say it's simple to use. The water pressure holds the switch in filtered position, and when you shut off the water it returns to the unfiltered position. However, the filter is not the easiest to change, say some,

Durability/cost of ownership

Durable and affordable. Even those who were initially skeptical of the Culligan FM-15A's plastic construction say they are pleased with how durable the unit seems to be. Many say they've had theirs for quite a few years and it's still going strong and looking like new, and we read a lot of reviews from those who have bought one for every sink in their home -- it can be purchased in multi-packs. The FM-15A comes with a two-year warranty. Most expert and user reviewers also agree that it's a great value -- one professional testing organization named it a Best Buy. Replacement filters cost around $12 and last for 2 months or 200 gallons. There is no filter replacement indicator, but the filters include stickers to help remind you when it's time to order.

Where To Buy
Culligan FM-15A Advanced Faucet Filter Kit

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Culligan FM-15A Reviews


The Culligan FM-15A Water filter is tested alongside 45 total water filters to see how well they remove various contaminants, including lead and chloroform. They are also rated for clogging and flow rate. About a dozen owners weigh in with helpful comments as well.

Review: Culligan FM-15A Water Filter, Editors of, Not Dated


With more than 2,130 reviews the Culligan FM-15A earns an average rating of 3.9 out of 5 stars. Owners say it's easy to install and most say they've noticed an improvement in water quality and taste. There are complaints of very slow dispensing, difficult installation and that the Culligan FM-15A does not fit some faucets.

Review: Culligan FM-15A Advanced Faucet Filter Kit, Contributors to, As of March 2015


At the Culligan FM-15A earns an average rating of 4.3 stars out of 5 in more than 50 reviews; 87 percent would recommend this product to a friend. It gets praise for its ease of installation and improvement in water quality. Others note that the FM-15A does not fit on their faucet and drips very slowly.

Review: Culligan Faucet-Mounted Drinking Water Filter Level 3 Advanced Filtration FM-15A, Contributors to, As of March 2015

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