50/52 Under-Sink Water Filtration System

Complete multi-stage filtration in a compact under-sink footprint.
  • Filtration where space is limited
    The 50/52 delivers a ready supply of filtered water in situations where there isn’t room for a full-size water cooler, tucking neatly under the sink and connecting to your existing faucet or an optional gooseneck spigot.
  • Multi-stage contaminant reduction
    Sediment, activated carbon, phosphate, lead, and antimicrobial filters work together to reduce a wide range of common tap water contaminants, so every glass tastes clean and fresh.
  • Simple, low-maintenance operation
    With no electrical connection required and replacement filters readily available, the 50/52 is an easy, dependable way to upgrade water quality at the tap.
Feature 1-25 Users 1-25 Users
Feature Ambient Ambient
benefit Free and no obligation quote Free and no obligation quote
benefit Local support from a full-service expert Local support from a full-service expert
benefit No bottles, no bottle fees No bottles, no bottle fees

Technologies and filtration

The 50/52 uses a multi-stage filtration system, combining sediment filtration down to 1 micron, activated carbon, phosphate and lead filters, and an antimicrobial filter with silver ion technology to reduce contaminants and deliver clean, great-tasting water.

Dimensions and specifications

Filter measures
2.5” w x 12.5” h with the inlet/outlet ports (2.5” w x 11” h without inlet)
NSF rated
1,500 gallons and certified to NSF/ANSI 42 for material safety, and for the reduction of Chlorine, Taste and Odor
Flow rate
0.5 gallons per minute
Electrical connection
No electrical connection required
Gooseneck spigot
8.5" gooseneck spigot (optional) for easy access and container filling (Quench 52)

Included in your subscription

Simple setup. Seamless support.
Quick and easy installation of your 50/52 under-sink filtration system, with minimal disruptions to your day.

Regular check-ups. Free upgrades.
Continuous maintenance to keep your 50/52 delivering clean, great-tasting filtered water.

Round-the-clock assistance.
Responsive 50/52 support from our expert team, available to answer your questions from 8 a.m. – 8 p.m. EST.

Clean, safe, great-tasting water. Always.

For 90 years, Culligan has been dedicated to improving water quality. Our wide range of products will offer you pristine, quality water with every use.

Explore the certifications behind our water quality

Reverse osmosis
Carbon filtration
UV sanitization

The simple, easy water solution.

Save money

Enjoy customizable water solutions that fit your needs and your budget. Our monthly fee covers everything — no surprises or extra charges. Ever.

Save time

From consultation to maintenance, we’ve got you covered with national coverage and a dedicated contact person to manage your water needs, giving you more time to focus on your business.

Save plastic

Enjoy safer, great-tasting water while contributing to a more sustainable future, free from single-use plastic water bottles.

Installation & Maintenance

Simple setup. Seamless support.

Seamless installation.

From quick delivery to expert setup, we handle everything. Our professional installation is typically completed in an hour or less, so you can enjoy pure water right away.

Full national coverage.

We take care of everything from your first consultation to routine maintenance, so you can focus on what matters most — your business.

Ongoing support.

With our expert team always on standby, enjoy set-it-and-forget-it simplicity with responsive support whenever you need.

An industry leader.

Culligan Quench leads the industry in providing bottleless water solutions, offering superior service and sustainable options compared to traditional water delivery services.

Get started with a free estimate

Bottled Delivery Competitors
White glove machine installation & servicing
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Plumbed-in water systems & no bottle fees
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Round-the-clock customer support (8AM-8PM)
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Free upgrades for broken or outdated machines
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Reviews and questions

Discover how Culligan Quench customers are using and enjoying this product. Share your feedback or ask a question, and our team will follow up with an answer.

Ratings & reviews
Questions & answers

Frequently asked questions

What contaminants does the 50/52 reduce?

The 50/52 reduces common tap water contaminants including asbestos fibers, chlorine taste, odor, dirt, lime scale sediment, turbidity, Cryptosporidium, and Giardia cysts.

How does the 50/52 filtration work?

It uses a multi-stage system: sediment filtration removes particles as small as 1 micron, activated carbon removes chlorine and off-tastes, phosphate and lead filters address hard water impurities and heavy metals, and an antimicrobial filter uses silver ion technology to neutralize microorganisms.

What is the difference between the 50 and the 52?

Both are under-sink filtration systems, but the 52 includes an optional 8.5” gooseneck spigot for easy access and container filling, while the 50 connects to your existing faucet. They are sold separately.

Does the 50/52 require electricity?

No. The 50/52 requires no electrical connection, making it a simple, low-maintenance filtration solution.

How often do the filters need to be replaced?

The system is NSF rated to 1,500 gallons. Replacement filters are available at portal.culliganquench.com, and your local Culligan Quench expert can help determine the right replacement schedule for your usage.

Who is the 50/52 best suited for?

The 50/52 is ideal for situations where a ready supply of filtered water is needed but space is too limited for a full-size filtered water cooler.

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