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NSA 25I Replacement: The USA-25 Ice Maker Filter

The NSA 25I inline filter was a common way to filter the water going to refrigerators and ice makers. It has been discontinued, so if yours needs replacing, the made-in-USA...

NSA 50C Replacement: The USA-50 Countertop Filter

The NSA 50C was a popular countertop water filter, but it has been discontinued. If yours has reached the end of its life, the made-in-USA USA-50 Countertop Water Filter is...

NSA 100S and 100SX Replacement: The USA-100 Und...

For years, the NSA 100S and NSA 100SX were go-to under sink water filters. Both models have been discontinued, so if yours is due for replacement, you can't simply order...

Whole House vs. Under Sink Water Filter: Which ...

If you want cleaner water at home, you have two main choices: filter the water at your kitchen sink, or filter all the water that comes into the house. Both...

Does an Under Sink Water Filter Remove Chlorine?

Short answer: yes. A good under sink water filter with activated carbon (GAC) and KDF media removes chlorine, along with the taste and smell that come with it. Here's why...

KDF vs. Carbon Water Filters: What's the Differ...

Shop for a water filter and you'll see two terms again and again: carbon (often listed as GAC, for granular activated carbon) and KDF. They work in completely different ways,...