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PUR PLUS Faucet Mount Filtration System

PUR PLUS Faucet Mount Filtration System

Not recommended

The #1 selling faucet-mount filter reduces lead and dozens of contaminants, but the entire housing the water flows through on its way to your glass is plastic - so it is not plastic-free.

We don't recommend this one

For a filtered-water path that is not plastic, choose a stainless gravity dispenser like the Boroux Legacy or ProOne Big+ - filtered water sits in and pours from steel.

The verdict: Significant plastic contact

PUR is the #1 selling brand in faucet filtration (Nielsen US sales), and the PLUS faucet mount (FM-3700B) does its headline job well: it is WQA-certified to reduce lead and NSF-certified to reduce dozens of other contaminants. But the housing itself is the problem here. From the tap, water enters a BPA-free plastic mount, passes through a plastic-encased filter cartridge, and exits a plastic spout - the water's entire contact path is plastic on the way to the glass. Included as a corrective: a faucet filter cleans your water of contaminants while routing every drop through plastic.

Verification: Manufacturer confirmed · Last reviewed September 2026

What it's made of

PartMaterialWater contact
filter housing / mount body
BPA-free molded plastic housing; filtered water flows through and exits here; specific resin not confirmed (notes mention polypropylene/ABS as an unconfirmed guess)
Plastic
other / unspecified
Yes primary
diverter valve and spout
BPA-free plastic diverter and output spout the filtered water pours from
Plastic
other / unspecified
Yes primary
filter cartridge housing
plastic-encased activated-carbon and ion-exchange filter media
Plastic
other / unspecified
Yes primary
exterior shell
chrome-finished plastic exterior (cosmetic)
Plastic
other / unspecified
No

PUR's PLUS faucet-mount system clamps onto a standard kitchen faucet and filters water on demand - no pitcher to refill. The 3-in-1 cartridge is certified to reduce lead, chlorine, and dozens of other contaminants, rated for about 100 gallons before replacement, and PUR is the category's best-selling brand. Inexpensive and widely available.

Pros

  • WQA-certified lead reduction; NSF-certified for chlorine and many contaminants
  • Filters on demand at the tap - no plastic pitcher to refill
  • Best-selling, widely available, inexpensive

Cons

  • Marketed on contaminant reduction in a way that obscures the all-plastic path
  • No plastic-free configuration exists for a faucet-mount filter

Notes

Common questions

Does the PUR PLUS Faucet Mount Filtration System have plastic in it?

Yes. On the PUR PLUS Faucet Mount Filtration System, the filter housing / mount body, diverter valve and spout and filter cartridge housing are plastic and sit in the water path. There is plastic in the exterior shell, which never touches your water.

What is the PUR PLUS Faucet Mount Filtration System made of?

Part by part, the PUR PLUS Faucet Mount Filtration System is: filter housing / mount body — plastic; diverter valve and spout — plastic; filter cartridge housing — plastic; exterior shell — plastic.

Where is the PUR PLUS Faucet Mount Filtration System made?

The PUR PLUS Faucet Mount Filtration System is made in China.

Categories: Water Filters

Sources

Every material claim above is backed by these. This is the scattered info we centralized.

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