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Culligan FM-25 Review

This efficient faucet mount filter from Culligan is stylish and affordable. Whether you’re a fan of the brand or are looking for something that will get the job done, you’ll surely like this water filtration system. The filter that comes in the box lasts for 200 gallons of water.

The device comes in a classic chrome finish, and its size is suitable for small kitchens. We can say that it’s one of the smallest items on this list. It’s perfect for when you need a lot of work or to wash large pans. The unit stays out of your way, so there’s no way you can damage it.


Culligan FM-25 Faucet Water FilterThe unit removes what most of the others on this list remove and a little bit more. This Culligan system can successfully reduce or eliminate sediments, chloramines, lindane, chlorine, lead, atrazine. It may also significantly reduce cryptosporidium, giardia cysts. Plus, the device definitely gets rid of bad taste and odor. You can notice the change and improvement in the water right away. Depending on the contaminants found in your water, even the color may be cleared after filtration.

This product requires that you flush the system for 3 seconds before each use, which can be annoying and wasteful. Also, this unit’s flow rate is average, like most that we tested. It’s about 0.5 GPM, which is enough to fill a large water bottle in seconds.

However, in contrast to the rest products on our list, this system’s filter won’t be damaged by hot water. It is not recommended to run too hot or too much water through it, but it can endure a fair amount.

Using the diverter valve, you may use either filtered on unfiltered water. What is more, the button which activates it automatically goes back into the unfiltered position after you stop the water. That happens between 5 to 10 seconds after the water stops.


This Culligan faucet mount water filter is simple to set up. No tools or experience are necessary. To help you, even more, the manufacturer has included a couple of adapters that can fit any standard type faucets.

First, you need to remove your faucet’s aerator. Then try on the adapters until one fits. You can use the washer you already had on the faucet or a new one. Tighten the adapter. Then screw on the unit.

When it’s set and is stable, pull the diverter and turn the water on. Wait a couple of minutes to see if there will be leaks. Also, after about ten minutes, the carbon filter must have flushed and activated. Thus your water filtration system is ready to use.

Product Dimensions

Weight: 13,4 ounces

Height: 6,5 inches

Length: 5,5 inches

Width: 3,5 inches

Colors: Chrome

Filter life: 2 months


  • This unit has been tested and certified by IAPMO against ANSI Standard 42 and 53.
  • The product has two years warranty.
  • It has an Auto Turn-off function, which helps extend the filter life.
  • Unlike other similar systems, this one endures a 40-100°F temperature range.


  • Doesn’t have a filter change indicator.
  • After changing the filter once or twice, it may become harder to take the housing off to do it again.

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