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Culligan FM-15A Review

By: Kelly Burgess on March 29, 2017

Bottom Line

The Culligan Faucet Filter FM-15A's durability, budget price, low annual filter cost and long filter life all combine to make it one of the best faucet-mounted filters you can buy. Users love the taste of the water and automatic switch, but complain of the very slow flow rate.


  • Low annual filter cost
  • NSF certified
  • Durable, with a two-year warranty


  • Low flow rate
  • Doesn't fit some faucets
  • No filter-change indicator
Our Analysis
Read Amazon Reviews

Breaking it down


Excellent filtering, simple design. Bells and whistles take a backseat to filtering performance with 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 ConsumerReports.org 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 either, 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 the filtered position; it returns to the unfiltered position when the water is shut off. The replacement 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 looks 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. The replacement filter cartridge for this faucet filter is the Culligan FM_15RA (Est. $15) and they last for 2 months or 200 gallons. There is no filter replacement indicator, but the filter includes stickers to help remind you when it's time to order. The FM15-A is the white version, this faucet water filter also comes in chrome as the Culligan FM-25 (Est. $30).

Our Sources

Editors of ConsumerReports.org, Not Dated

The Culligan FM-15A Water filter is tested alongside more than 40 other water filters to see how well they remove various contaminants, including lead and chloroform. They are also rated for clogging and flow rate. About 15 owners weigh in with helpful comments as well.

Contributors to Amazon.com, As of March 2017

With roughly 3,435 reviews the Culligan FM-15A earns an overall 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. These reviews include the chrome version as well.

Contributors to Walmart.com, As of March 2017

The Culligan FM-15A is well-liked at Walmart.com, earning an overall rating of 4.3 stars out of 5 in more than 70 reviews. 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.

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