Delta Clarifi Tankless Under Sink 6-Stage Reverse Osmosis System

Delta
Scout Pick
95 Excellent
$799.00
View on Amazon · $799.00
Verified Amazon match

At a glance

Beneficial ingredients 12
Harmful ingredients 0
Owned by Masco Corporation
Category Sink Filters
Summary

Delta Clarifi Reverse Osmosis System scores 95/100. Independently certified to NSF/ANSI 42, 53, 58 and 401, it reduces total PFAS by 99.5%, lead and arsenic by over 99%, fluoride by 91%, plus nitrate, chromium-6, microplastics, chloramine, VOCs and pharmaceuticals. A remineralizing cartridge adds calcium and magnesium back after filtering. Tankless, with 2:1 filtered-to-waste efficiency.

Key ingredients 12

PFAS
Good

Certified to reduce total PFAS (including PFOA and PFOS) by 99.5% (NSF/ANSI 58) and 99.7% through the carbon stage (NSF/ANSI 53).

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Lead
Good

Certified to reduce lead by 99.3%.

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Arsenic
Good

Certified to reduce arsenic (pentavalent) by 99.3%.

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Fluoride
Good

Certified to reduce fluoride by 91.1%.

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Nitrate & Nitrite
Good

Certified to reduce nitrate by 97.6% and nitrite by 95.3%.

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Chromium-6
Good

Certified to reduce hexavalent chromium by 98.7%.

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Mercury
Good

Certified to reduce mercury by 97.9%.

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Microplastics
Good

Certified to reduce microplastics by 96.8% (NSF/ANSI 401).

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Chlorine & Chloramine
Good

Certified to reduce chlorine and chloramine by 95.6%.

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VOCs
Good

Certified to reduce volatile organic compounds by 98.9%, including trihalomethanes and pesticides such as atrazine.

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Pharmaceuticals
Good

Certified to reduce pharmaceuticals including ibuprofen, naproxen and estrone by 95.5–99.7% (NSF/ANSI 401).

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Remineralization
Good

A remineralizing cartridge adds calcium and magnesium back after reverse osmosis.

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Amazon pricing & content

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Delta Clarifi Tankless Under Sink 6-Stage Reverse Osmosis System

Common questions

Is Delta Clarifi Tankless Under Sink 6-Stage Reverse Osmosis System healthy?

Delta Clarifi Tankless Under Sink 6-Stage Reverse Osmosis System scores 95/100 on Scout's independent analysis of ingredients, additives, and lab results — one of the stronger scores in Scout's catalog. Independently certified to NSF/ANSI 42, 53, 58 and 401, it reduces total PFAS by 99.5%, lead and arsenic by over 99%, fluoride by 91%, plus nitrate, chromium-6, microplastics, chloramine, VOCs and pharmaceuticals.

How does Delta Clarifi Tankless Under Sink 6-Stage Reverse Osmosis System compare to other sink filters?

Delta Clarifi Tankless Under Sink 6-Stage Reverse Osmosis System ranks #1 of 16 sink filters in Scout's independent rankings.

Which ingredients drive Delta Clarifi Tankless Under Sink 6-Stage Reverse Osmosis System's score?

In Scout's ingredient-by-ingredient analysis, PFAS, Lead, Arsenic count in its favor. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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