If you have a Frigidaire refrigerator with a water dispenser, you've probably noticed the filter replacement reminder light at some point. But do you actually need to replace your water filter, and if so, which one should you buy? Understanding your options helps you make a decision that fits your household's water quality concerns and budget.

What the Frigidaire ULTRAWF Water Filter Does

The Frigidaire ULTRAWF Pure Source Ultra water filter is designed to work specifically with Frigidaire refrigerators that have the PureSource Ultra filter system built in. The filter uses activated carbon technology, which is the most common approach for home water filtration.

Carbon-based filters address several everyday water quality issues. They reduce the taste and odor of chlorine, which many people notice when they drink tap water directly. Beyond taste improvements, the filter is tested to reduce harmful contaminants including lead, nitrates, pesticides, and mercury. This matters if you live in an area with water quality concerns or simply prefer an extra layer of filtration before drinking.

The Frigidaire ULTRAWF has been tested and certified by NSF International against multiple standards, which means it has undergone independent verification that it performs as claimed. It's also certified by the Water Quality Association, another third-party verification body.

Checking If You Have a PureSource Ultra System

Not all Frigidaire refrigerators use the same filter. Before ordering the ULTRAWF, you need to confirm your fridge has the PureSource Ultra filter system. You can find this information in your refrigerator's user manual, which is usually available online if you've misplaced the paper copy. Look for your specific model number (typically found inside the fridge, on the back wall or along the side) and search for it on Frigidaire's website.

Alternatively, check whether your fridge's filter compartment looks like the one shown in product photos. The filter cartridge itself should have identifying information printed on it. If you're unsure, it's worth checking before purchasing, since an incompatible filter won't fit and can't be returned.

Installation and Priming Your New Filter

One thing people often get wrong is skipping the priming step after installation. The Frigidaire ULTRAWF is straightforward to install: push to release the old filter, then push the new filter in until it clicks into place. However, after installation, you need to run water through the filter for about 3 minutes before drinking it. This flushes out harmless dissolved air and carbon particles that come from the manufacturing process. Skipping this step means your first few glasses of water may taste slightly off.

After priming, you'll need to reset the reminder light on your refrigerator. Most Frigidaire models require you to press and hold the Water Filter button on the dispenser control panel for about 3 seconds. When the display changes from red to green, you'll know the reminder has been reset. If your model works differently, check your refrigerator's use and care manual for specific instructions.

Replacement Frequency and Storage

Frigidaire recommends replacing the ULTRAWF every six months under normal household use. If your household uses a lot of water or has particularly poor water quality, you might need more frequent replacements. The reminder light on your refrigerator is designed to help you track this, though you'll need to reset it manually each time you replace the filter.

Store replacement filters in a cool, dry place. Keep them in their original packaging until you're ready to install them. Don't expose them to extreme temperatures or direct sunlight, as this can affect the filter material.

Is a Water Filter Right for You?

If your tap water has a noticeable chlorine taste or odor, a filter makes an immediate difference. If you have specific water quality concerns—such as high lead levels in your area or a preference for extra filtration—the Frigidaire ULTRAWF provides certified reduction of common contaminants. However, if your municipal water is already well-treated and you're happy with it, a filter is optional.

The Frigidaire ULTRAWF Pure Source Ultra filter is a practical addition to any compatible Frigidaire refrigerator, especially for households that prioritize water quality or prefer the taste of filtered water.

The product in this guide: FRIGIDAIRE ULTRAWF Pure Source Ultra Water Filter, Original, White, 1 Count