The best faucet water filters

A faucet filter screws onto the end of the kitchen faucet, so it needs no tools and no space under the sink, and a lever switches between filtered and unfiltered water. Not all of them carry a health claim on a certifier's own listing. Every filter here was checked against the listings of NSF, WQA and IAPMO on October 16, 2026. TapBuff has not tested these filters.

They are ranked by what those listings cover, then by what each costs over five years at the maker's list prices, for a household of three using 3 gallons a day for drinking and cooking.

The picks at a glance

Filter	Pick	Certified for	Five years
Brita Elite Water Filter Faucet System (SAFF-100/FF-100)	Best for lead	Lead, Chlorine, Total trihalomethanes (TTHM)	$1,004
Instapure COMPLETE F5 Lead Reducing Faucet Water Filter (F5)	Lowest price with a lead claim	Lead, Chlorine	$1,375
PUR PLUS Faucet Filtration System, Horizontal (PFM400H)	Most claims	Lead, PFOA, PFOS and 5 more	—
Five-year cost for a household of 3 at the makers’ list prices, cartridges included. A plus sign means a part due in those five years has no published price.

Check the listing, not the box

For lead, EPA's consumer tool looks for two claims on the same filter: lead reduction under NSF/ANSI 53, and Class I particulate reduction under NSF/ANSI 42. Several faucet filters fall short of that:

• Instapure F8 ULTRA. Instapure says it reduces lead and VOCs. Its only listing, WQA's, is under NSF/ANSI/CAN 372, which covers the lead content of the filter's own parts, not lead in your water. It has no reduction claim on any listing.
• Instapure F2. WQA lists it under NSF/ANSI 42 only, for chlorine, taste and odor.
• Culligan's and ZeroWater's faucet filters. WQA lists PFOA and PFOS claims under NSF/ANSI 53 for Culligan's CFM-300 and CULFM models and ZeroWater's ZFM-400, but no lead claim. Neither maker sells them on its own store, so they have no price here and aren't in the table.

How the picks are ranked

What the listings cover comes first. A filter with lead and PFAS claims ranks above one with a lead claim alone, which ranks above one listed for chlorine only.

Then five-year cost. Each figure is the faucet system's list price plus every filter due in five years, at the maker's list prices, with the first filter in the box. Makers rate a filter in gallons and in months, and you replace it at whichever runs out first. Where a maker publishes no price, there is no figure, rather than a guess.

The picks

Best for lead

Faucet mount

Brita Elite Water Filter Faucet System (SAFF-100/FF-100)

Best for both claims EPA looks for, at the lowest five-year cost

Strengths

• Lead under NSF/ANSI 53 and Class I particulate under NSF/ANSI 42, on WQA's listing
• Asbestos, chlordane, toxaphene and VOCs under 53 as well, and seven claims under NSF/ANSI 401, microplastics among them
• $32.49 for the system, and $17.99 a filter

Trade-offs

• Filter rated 100 gallons or four months: at 3 gallons a day, a new one about every 33 days
• No PFAS claim
• Brita says the 100-gallon life starts after a 5-minute flush

Lowest price with a lead claim

Faucet mount

Instapure COMPLETE F5 Lead Reducing Faucet Water Filter (F5)

Best for a lead claim for the least up front

Strengths

• Lead and cysts under NSF/ANSI 53, and chlorine, taste and odor under NSF/ANSI 42, on WQA's listing
• $27.95, the lowest list price of any faucet filter here with a lead claim

Trade-offs

• No Class I particulate claim, which EPA also looks for in a lead filter
• Filter rated 100 gallons or three months, at $24.95 single, so it costs more than the Brita over five years at single-filter prices. A 2-pack is $29.95, which brings the two about even
• No VOC or PFAS claim

Most claims

Faucet mount

PUR PLUS Faucet Filtration System, Horizontal (PFM400H)

Best for lead, mercury and Total PFAS on the faucet

Strengths

• Lead under NSF/ANSI 53 on NSF's, WQA's and IAPMO's listings, with mercury, VOCs and Total PFAS on IAPMO's
• Class I particulate under NSF/ANSI 42, and microplastics under NSF/ANSI 401 on NSF's and IAPMO's listings

Trade-offs

• PUR publishes no prices, so its five-year cost can't be totaled
• Total PFAS is on IAPMO's listing only. NSF's and WQA's listings for the same system don't show it
• Filter rated 100 gallons or three months: at 3 gallons a day, a new one about every 33 days

Every faucet filter TapBuff tracks

The picks come from this table. It lists every faucet filter in TapBuff's catalog, and it changes as filters are added.

Faucet filters, by what their listings cover

Faucet mount	Its listings cover	Refills	Five years
Lead and PFAS claims
PUR PLUS Faucet Filtration System, Horizontal (PFM400H)No price published	Lead, PFOA, PFOS and 5 moreNSF 42, 53, 401 · WQA 42, 53, 401 · IAPMO 42, 53, 401	Every 33 days100 gallons or 3 months each	No price
A lead claim
Brita Elite Water Filter Faucet System (SAFF-100/FF-100)$32 to buy	Lead, Chlorine, Total trihalomethanes (TTHM)WQA 42, 53, 401	Every 33 days100 gallons or 4 months each	$1,004
Instapure COMPLETE F5 Lead Reducing Faucet Water Filter (F5)$28 to buy	Lead, ChlorineWQA 42, 53	Every 33 days100 gallons or 3 months each	$1,375
Chlorine, taste and odor only
Instapure ESSENTIALS F2 Faucet Water Filter (F2)$24 to buy	ChlorineWQA 42	Every 2 months200 gallons or 3 months each	$563
Grouped by what their listings cover, then ranked by five-year cost: a household of 3 using 3 gallons a day for drinking and cooking, at the makers’ list prices, with the first filters in the box. “No price” means the maker publishes none. Listings checked Oct. 16, 2026.

Faucet filter, pitcher or under the sink?

A faucet filter is rated for about as much water as a good pitcher filter: 100 gallons for Brita's and PUR's, against 120 for Brita's Elite pitcher filter. So over five years they cost about the same: $1,004 for the Brita faucet system at 3 gallons a day, against $942 for Brita's Tahoe pitcher with the Elite filter.

An under-sink filter is rated for far more water. The Express Water StreamLine carries lead and PFOA/PFOS claims and costs $527 over five years, and it connects to the faucet you have. The best under-sink water filters compares those, and the best water filter pitchers compares pitchers.

Use it the way EPA says

• Cold water only. EPA says not to run hot water through the filter. Switch to unfiltered water for anything hot.
• Replace it on time. EPA says a cartridge used after it expires can be less effective at removing lead. Put in your own household's use in the five-year cost calculator, which starts with the two priced picks and the StreamLine.

To see your utility's lead results: