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Culligan FM-25 Faucet vs PUR PLUS Faucet (FM2500V) Side-by-Side Comparison

Looking for a good faucet-mount water filter but can’t decide between the Culligan FM-25 and the PUR Plus FM2500V? Here’s our short comparison!

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Two faucet-mount water faucets, the Culligan FM-25 Faucet and PUR PLUS Faucet (FM2500V), held side-by-side by a reviewer for comparison purposes.

Overall Verdict

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The Culligan FM-25 faucet-mount filter has a pretty good run on the market. Besides having proven filtering performance (our hands-on testing showed perfect chlorine filtering performance), the filter has a solid, good-looking design that can elevate the kitchen space’s aesthetic. It’s no surprise that it’s a hit among customers.

But the PUR Plus 2500V also put up a good fight. It also has perfect chlorine filtering performance in our hands-on test. While this filter doesn’t have the luxurious glossy metal housing of the Culligan FM-25, the plasticky filter still looks really good with its sleek, curved design.

What sets these two apart is the filtering flow rate. The Culligan FM-25 worked quicker in filtration mode at a recorded flow rate of 0.5 GPM. Meanwhile, the PUR Plus FM2500V only managed to reach 0.3 GPM.

So, if you have a high-pressure faucet at home and want to maintain the speed, the Culligan FM-25 will be a better option.

Pros & Cons

  • Excellent chlorine filtering ability with a near-100% filtration rate.
  • Good build quality, premium materials.
  • The locking collar fixes the filter solidly to the tap, preventing it from wiggling around.
  • The push/pull routing valve is easy to use. Automatically reset after the tap is shut off.
  • Replacement filters are cheap, easy to find.
  • Excellent chlorine filtering ability
  • Easy installation and servicing with "one-click" system
  • Lightweight and compact design
  • A filter change indicator
  • Very low flow rate in filtration mode (0.5 GPM).
  • The filter of our unit leaked during testing.
  • Low flow rate in filtering mode
  • Weak grip on faucet due to the one-click system
  • Flimsy routing valve’s handle
  • The plastic construction can be problematic for long-term durability

Key Specs

Dimensions
L3 x W4.5 x H3.5 inches
0.44 GPM
Weight
1.1 lbs (0.5 kg)
100 gals
Capacity
200 gals
NSF/ANSI Standard 42
Qualifications
NSF/ANSI Standard 42 and 53
L6.5 x W2.5 x H5.5 inches
Filtering flow rate
0.5 GPM
1 pound
Warranty
2 years
2-year

Where to Buy

Price at publication
$40.27
$21.81

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Analysis and Test Results

Performance

Overall Performance Scoring
7.0
6.8

Chlorine Test

10
10
The Culligan FM-25 filter mounted on a tap. To its left is the testing result pad with two activated test strips.
Two testing kits overlaid on the color pad showing the test results. One from the control sample (left) and one from the filtered water sample (right).
The Culligan FM-25 filter mounted on a tap. To its left is the testing result pad with two activated test strips.
Culligan FM-25 Faucet Mount Filter Chlorine Test 3
Two water test strips laid on a color chart, held to the left of the PUR Plus FM2500V water filter mounted on a faucet.
Two activated test strips are laid on a color chart, showing the water quality result. The strip to the left is from the chlorine water pumped through the filter. The second strip is from the filtered water of the PUR FM2500V.
Two water test strips laid on a color chart, held to the left of the PUR Plus FM2500V water filter mounted on a faucet.
PUR Faucet Water Filter (FM2500V) Chlorine Test
Before
10+ mg/l
10+ mg/l
After
~0 mg/l
~0 mg/l

Flow Rate Test

5.0
4.7
Duration
20 secs
20 secs
Amount
0.172 gallons
0.148 gallons
Flow Rate
0.5 GPM
0.44 GPM

Design

Overall Design Scoring
8.3
7.8

In the Box

The glossy housing of the Culligan FM-25 faucet-mount water filter next to its shipping box, adapters, and paperwork.
The glossy housing of the Culligan FM-25 faucet-mount water filter next to its shipping box, adapters, and paperwork.
Two faucet adapters made from white plastic with black rubber seals at the top
The grey PUR PFM350V filter is in the middle, surrounded by its accessories, manuals, and the shipping box.

Dimensions

Culligan FM-25 Faucet Mount Filter Dimensions
The dimensions of the PUR Plus FM2500V. Its length is 6.5 inches, width is 2.5 inches, and height is 5.5 inches.
Length
3.0" (7.6 cm)
6.5" (16.5 cm)
Width
4.5" (11.4 cm)
2.5" (6.4 cm)
Height
3.5" (8.9 cm)
5.5" (14.0 cm)
Weight
1.1 lbs (0.5 kg)
1 pound

Build Quality

8.3
7.5
The Culligan FM-25 filter’s side profile, showing its large filter compartment, slip-on collar, and routing valve’s knob.
The Culligan FM-25 filter’s side profile, showing its large filter compartment, slip-on collar, and routing valve’s knob.
The main filter nozzle of the Culligan FM-25, with the “Remove Before Installing” sticker removed.
The grey, plastic PUR Plus FM2500V faucet-mount filter on its side on a grey table.

Filter Piece

8.0
8.5
The filter piece of the Culligan FM-25 faucet-mount water filter, with white plastic casing and chrome-plated end piece.
The filter piece that comes with the Culligan FM-25.
The plastic, blue-colored filter cartridge of the PUR Plus FM2500V standing upright on a grey table.
Filter Model
Culligan FM-25R and FM-25RA
PUR Plus MineralCore™
Filtration Process
Activated Carbon and Ionization Filtration
Activated Carbon, Ion Exchange Resin & MineralCore™
Certifications
ANSI Standard 42 and 53
ANSI Standard 42, 53, 401
Filter Capacity
200 gallons
100 gallons

Routing Valve

10
6.0
A close-up view of the push-pull routing valve on the side of the Culligan FM-25 faucet-mount water filter.
A close-up view of the push-pull routing valve on the side of the Culligan FM-25 faucet-mount water filter.
A top-down view of the mounting collar of the Culligan FM-25 along with the push-pull routing valve.
The handle of the PUR Plus FM2500V’s routing valve in the horizontal position.
The routing valve’s handle is in the horizontal position, which will allow water to bypass the filter.
The handle of the PUR Plus FM2500V’s routing valve in the horizontal position.
The handle of the PUR Plus FM2500V is in the vertical position, activating the water filtering mode.
Type of Valve
Push/pull
Rotating

Usability

Overall Usability Scoring
9.8
9.4

Installation

10
8.5
The Culligan FM-25 faucet-mount water faucet with a faucet adapter attached to the filter’s mounting port.
The filter with a faucet adapter attached to the mounting port.
A close-up shot of the PUR Plus FM2500V’s mounting port when mated with a metal faucet adapter.
The PUR Plus FM2500V’s mounting port when mated with a faucet adapter. Note the white disengaging buttons to either side of the port.
A close-up shot of the PUR Plus FM2500V’s mounting port when mated with a metal faucet adapter.
The PUR Plus FM2500V leans backward when mounted on the faucet.

Ease of Use

10
10

Leak

10
10

Maintenance

8.0
8.0
The Culligan FM-25 faucet-mount water filter next to the Culligan FM-25R filter piece.
The Culligan FM-25 faucet-mount water filter next to the Culligan FM-25R filter piece.
An upside down FM-25R filter piece, with chrome-plated end piece and housing made from white plastic.
The filter change indicator light on the PUR Plus FM2500V faucet-mount water filter.
Filter Indicator
N/A
Yes
Replacement
2 months
1-2 months