Compare Faucet Mounted Water Filter
Which scores higher on safety? R3 breaks it down.
R3 scored the PUR PLUS Faucet Mount Water Filtration System 9.2/10 and the Brita Complete Faucet Water Filter System 9.1/10 on the same faucet mounted water filter scoring system, weighing safety, efficacy, and usability. The overall scores are close; the pillar breakdown below shows where they differ.
The most important dimensions, side by side.
See which one actually scores higher — and why
Free account unlocks full safety scores, spec-by-spec breakdown, and the R3 verdict on PUR PLUS Faucet Mount Water Filtration System vs Brita Complete Faucet Water Filter System.
Unlock the full PUR PLUS Faucet Mount Water Filtration System vs Brita Complete Faucet Water Filter System breakdown
Free account unlocks all safety scores, complete spec comparison, scoring rationale, and the R3 verdict on which one to buy.
Everything you need to make the call - who each one is for, and who should skip it.
Go for it if you...
Your water has known or suspected lead, PFAS, pharmaceuticals, or pesticides and you need third-party certified protection from a faucet filter.
You want the maximum NSF certification scope (42+53+401) with independent lab PFAS evidence — not just marketing claims.
You're in a municipal water area with standard threaded faucets and can commit to quarterly filter replacements.
PFAS in your water supply is a documented concern — this is the only faucet-mounted option with independent lab non-detect evidence.
You need the full NSF 42+53+401 certification stack with PFAS lab evidence AND want the best flow rate experience (0.60 GPM) in the category.
Daily filtered-water friction bothers you — Brita's faster flow rate noticeably reduces fill time compared to PUR Plus.
You trust the Brita brand and want NSF 53-certified lead and DBP protection with IAPMO R&T co-certification for added confidence.
The main thing to know
NSF 42+53+401 certified with independent lab PFAS confirmation — the highest verified safety profile available in a faucet-mounted filter. Replacement filters needed every 3 months at $0.27/gal.
Identical safety credentials to PUR Plus (NSF 42+53+401) with a faster 0.60 GPM flow rate, but at $0.3388/gal it is the most expensive faucet filter per gallon in this comparison.
Skip this if you...
You have a pull-out, pull-down, or sensor faucet — this filter is incompatible with non-standard faucet types.
You want to minimize filter replacement hassle — the 100-gallon life means quarterly replacements, which some families find burdensome.
You're cost-conscious on filter operating expenses — at $0.3388/gal, Brita Complete is the priciest option here, and PUR Plus delivers the same safety at $0.27/gal.
You have a pull-out, pull-down, or sensor faucet — like all products in this category, Brita Complete is incompatible with non-standard faucets.
Neither of these quite what you're looking for?
I've reviewed all Faucet Mounted Water Filter options at every price pointEvery Faucet Mounted Water Filter in our database is scored using R3's deterministic scoring system - the same inputs always produce the same score. For this comparison, we evaluated PUR and Brita across 3 independent criteria: Safety (85%), Efficacy (9%), Usability (5%). No sponsored rankings. No paid placements.
Straight answers - no sponsored content, no filler.
Both scored close to 9.2/10, so the better choice depends on your priorities. Safety is our top-weighted scoring pillar, followed by efficacy, and usability. Check which pillar matters most to your family and compare those specific scores.
R3 uses a deterministic scoring system - the same inputs always produce the same score. We evaluate each Faucet Mounted Water Filter across Safety, Efficacy, Usability using independently verified data. No sponsored rankings. No paid placements. Every score is fully reproducible.
Not necessarily. The overall score reflects how we weight those three pillars, but your priorities may differ. If you care most about safety, compare the safety scores directly. If budget drives your decision, the prices tell a clearer story. The "right" pick is the one that matches what matters most to your family.
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