USA-50 Countertop Water Filter - NSA 50C Replacement

The made-in-USA replacement for the discontinued NSA 50C* countertop water filter. The USA-50 sits on your counter next to the sink and connects to your faucet in minutes, with no tools and no plumbing changes. It's a great choice for renters and for anyone who wants filtered water without installing anything under the sink.

Replaces the NSA 50C

If you had an NSA 50C countertop filter, the USA-50 is our replacement. It filters 2 times the amount of water of the discontinued NSA 50C, with 5-stage GAC/KDF filtration and a 10,000-gallon capacity.

Features

• 5-stage water filtration and purification system
• 10,000-gallon capacity, 2 times the amount of the old NSA 50C
• Installs in minutes without tools
• Fits all faucets, adapters included
• Compact, light and economical
• Sealed construction
• Bacteriostatic GAC/KDF media prevents bacteria growth for up to 36 months
• Improves taste and color and eliminates odors
• Reduces hundreds of contaminants (see GAC key)
• Made in the U.S.A.

Specifications

What's in the box

The USA-50 comes with everything shown in the product photos, including faucet adapters. If you ever need a new faucet diverter, the USA-50 diverter valve is sold separately.

Installation

1. Unscrew the aerator from the end of your kitchen faucet.
2. Attach the diverter to your faucet, using one of the included adapters if needed.
3. Connect the tubing from the diverter to the USA-50 and set the filter on your counter.
4. Turn on the cold water, switch the diverter to filtered, and run water for a few minutes before drinking.

Need help? Call us at 888-672-3458.

Frequently asked questions

Does the USA-50 replace my NSA 50C?
Yes. The USA-50 is our replacement for the discontinued NSA 50C, and it filters 2 times the amount of water.

Will it fit my faucet?
The USA-50 fits all standard faucets, and adapters are included. Pull-out and pull-down sprayer faucets usually can't take a diverter.

How often should I replace it?
Replace the USA-50 after 10,000 gallons or 36 months, whichever comes first.

What is the warranty?
Every unit has a 60-day full replacement warranty plus a 1-year pro-rata warranty. See our warranty program for details.

Still have a question?
Call 888-672-3458 or send us a message.

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• USA-100 Under Sink Water Filter (NSA 100S/100SX replacement)
• USA-25 Ice Maker and Appliance Water Filter (NSA 25I replacement)
• USA-75 Shower Head Water Filter

*NSA is a trademark of its respective owner. USA Filtration is not affiliated with NSA.