Home › Water Filters › FM-25 Faucet Mount vs G3P800
FM-25 Faucet Mount vs G3P800
Culligan's $22 model meets Waterdrop's $549 model. We tally wins category by category, then call a verdict.
Our recommendation
The G3P800 wins on more spec categories (2–1), but the FM-25 Faucet Mount undercuts it by $527. Choose the G3P800 for performance, the FM-25 Faucet Mount to save.
FM-25 Faucet Mount: 1 category wins G3P800: 2 category wins
Side by side
FM-25 Faucet Mount
$22
G3P800
$549
Filter type
Faucet-mount
Tankless RO
Removes
lead, chlorine
lead, PFAS, fluoride, nitrates, arsenic, chlorine
NSF certified
42, 53
58, 401
Flow rate
0.5 GPM
0.55 GPMWin
Filter life
200 gal
1,100 galWin
Filter cost / yr
40 USDWin
120 USD
Installation
DIY
DIY
Storage tank
No
No
FM-25 Faucet Mount
Inexpensive faucet-mount filter that reduces lead and chlorine for better-tasting tap water.
G3P800
Tankless under-sink RO with 800 GPD output and a smart faucet display.
More head-to-heads in your inbox
A weekly comparison and the deals worth knowing about. Unsubscribe anytime.
Wire NEWSLETTER.formAction in src/config.ts to enable submissions.
As an Amazon Associate HomeGodmother earns from qualifying purchases.