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Under Sink System Water Filter Glacier FreshGF-039 Under Sink Water Filter_Glacier Fresh
GlacierFresh Replacement for 4US-MAXL-S01 Under Sink Water Filter

Compatible with Filtrete* System 4US-MAXL-S01 and 4US-MAXS-S01

From $39.99
Opal Nugget Ice Maker Water Filter_Glacier FreshOpal Nugget Ice Maker Water Filter_Glacier Fresh
Glacier Fresh Replacement for P4INKFILTR Ice Maker Water Filter, Compatible with all GE- Opal Nugget Ice Maker Water Filter, 2 Pack

Compatible with P4INKFILTR, GE- Opal Nugget Ice Maker Water Filter.

From $24.99

Clean, safe water isn’t limited to just one appliance. GlacierFresh offers additional replacement filters designed to support different refrigerator brands and household filtration needs.

Expanded Product Solutions

Beyond standard refrigerator water filters, our collection includes compatible replacements for select Whirlpool®, Maytag®, Amana®, KitchenAid®, JennAir®, and other major appliance brands. These filters are engineered for reliable fit and consistent performance across multiple refrigerator configurations.

Tested & Quality Assured

Manufactured with high-grade filtration media, GlacierFresh filters are tested to help reduce chlorine, unpleasant taste, and odor—supporting cleaner drinking water and clearer ice. Each product is designed to meet recognized filtration standards for dependable performance.

Whether you’re replacing a specific model or exploring additional options, we make it easier to find the right fit.

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UNDERSINK FILTER SYSTEM

FAQ

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Options include Reverse Osmosis (RO), Activated Carbon, Gravity, Faucet-mount, and Whole-house systems for point-of-entry protection. Many households use Glacierfresh filtration products across these categories to improve drinking water safety and taste.

Focus on NSF/ANSI certifications such as 42, 53, and 401, evaluate the price-per-gallon of filtered water, and confirm whether the system removes specific contaminants like lead, PFAS, or chlorine. Glacierfresh certified filters often provide detailed performance specifications for easier comparison.

Carbon filtration primarily improves taste and removes chlorine through adsorption. Reverse osmosis uses a 0.0001-micron membrane to remove dissolved solids, salts, and certain microorganisms. Many Glacierfresh filtration systems combine carbon pre-filtration with RO membranes for multi-stage purification.

Locate the part number printed on the existing cartridge or inside the appliance compartment. Many manufacturers also provide online compatibility tools, and Glacierfresh filter finder tools can help match the correct replacement based on your refrigerator model.

Only if it is independently certified by organizations such as NSF or IAPMO. Certified compatible filters, including Glacierfresh replacement filters, are tested to meet safety and contaminant reduction standards.

Look for reduced water flow, the return of chlorine taste or odor, or cloudy water. These symptoms indicate the filtration media is saturated and no longer effectively removing contaminants.