Culligan MaxClear Scout 1 Filter vs Waterdrop TK-FS

Last updated: November 9, 2026

The Culligan MaxClear Scout 1 Filter is the better gravity water filter overall, rated 3.4 to 3.3. The Culligan MaxClear Scout 1 Filter leads on warranty and value. The Waterdrop TK-FS wins on certification. The Culligan MaxClear Scout 1 Filter costs $84.99 less ($155 vs $239.99).

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Culligan MaxClear Scout 1 Filter vs Waterdrop TK-FS

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every up to 2.25 gal gravity water filter; a clear win is highlighted. How we rank explains each one.

Factor weightCulligan MaxClear Scout 1 FilterWaterdrop TK-FS
Overall rating3.4/53.3/5
Value 25%80 $68.89 per gallon of capacity ($155, 2.2 gal)53 $106.66 per gallon of capacity ($239.99, 2.2 gal)
Running cost 15%50 replacement cost or element life not published (neutral score used)75 $0.012 per gallon filtered ($34.99 per element, 3,000 gal each)
Capacity 15%17 2.2 gal tank17 2.2 gal tank
Certification 20%30 states certification to NSF/ANSI 4240 states certification to NSF/ANSI 42, NSF/ANSI 372
Element life 15%50 element life in gallons not published (neutral score used)100 3,000 gal rated per element
Warranty 10%100 5-year warranty11 1-year warranty

Specifications

Culligan MaxClear Scout 1 FilterWaterdrop TK-FS
Capacity and flow
Tank capacity2.2 gal2.2 gal
Price per gallon of capacity$68.89$106.66
Elements included14
Maximum elements24
Filtration
Element typeMaxClear ceramic shell with carbon mediaCoconut shell carbon filter (black)
CertifiedNSF/ANSI 42NSF/ANSI 42, NSF/ANSI 372
Certification detailListing: IAPMO certified to NSF/ANSI 42 to reduce microplastics, lead and Total PFAS. The listing does not name the standards behind the lead and PFAS claims.Listing: system certified to NSF/ANSI 372 and the black carbon filter to NSF/ANSI 42. The listing does not say the fluoride filters are certified.
Fluoride-Included
Fluoride element life-1,000 gal
Running cost
Rated life per element-3,000 gal each
Replacement element79 $35 $
Cost per gallon filtered-$0.012
Build
Materialbrushed or polished stainless steel304 stainless steel
Height26 in-
Diameter8.6 in-
Warranty5 years1 year

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