ICEPURE WFS5300A Under-Sink Water Filter, 22,000-Gallon Capacity, NSF 42 & 372

For households looking to improve the taste of cold tap water at the sink, the ICEPURE WFS5300A connects directly to an under-sink water line. Its activated carbon filter is tested to reduce chlorine, taste, and odor. A 22,000-gallon capacity supports extended use between cartridge changes. The direct-connect design also avoids adding a separate countertop faucet hole.

What stands out

The filter uses coconut shell carbon and has a 0.5-micron outer layer. NSF/ANSI 42 testing covers reduction of chlorine, taste, and odor, while NSF/ANSI 372 certification addresses lead-free materials. Product information also describes independent testing for heavy metals and sediment. The system is designed to retain beneficial minerals rather than reduce total dissolved solids (TDS).

With a stated maximum flow rate of 2.5 GPM at 60 PSI, the system is built for everyday water use at the sink. That can make filtered water readily available for drinking, cooking, coffee, and other kitchen routines without relying on a separate countertop unit. The filter housing measures 6.81 by 5.39 by 15.55 inches, giving you useful dimensions to plan for under-sink placement.

What matters most

The cartridge is rated for 22,000 gallons or up to 3 years when used with municipal water. The recommended replacement point helps you plan cartridge changes around ongoing household use. Customer feedback often highlights improved taste and reduced chlorine odor. Experiences with flow and filter lifespan vary, and some customers report connection leaks, so a secure fit on a compatible line is an important part of installation.

Setup is intended for a cold-water line and direct connection to the original faucet. The system fits 1/2-inch or 3/8-inch female NPT threads, check that your line uses one of these connection types before purchase. This under-sink approach suits buyers who want filtration at the existing faucet rather than a countertop dispenser or a system that requires a separate faucet opening.

Best use cases

Use filtered water for drinking, meal preparation, coffee, pet water, or other everyday needs at a compatible sink. The direct connection keeps the filtration system beneath the counter while water is drawn from the existing faucet. It can also be used in a bathroom, bar, RV, or office where the cold-water connection matches the specified fittings. For installation, follow the included instructions and use the system only on a cold-water line.

Questions before you buy

What does the filter reduce? NSF/ANSI 42 testing covers chlorine, taste, and odor reduction. Product information also describes testing for heavy metals and sediment.

Which water lines does it fit? It is designed for cold-water lines with 1/2-inch or 3/8-inch female NPT threads and connects directly to the existing faucet.

Does it reduce TDS? No. The product information states that this system does not reduce total dissolved solids.

Final verdict

The ICEPURE WFS5300A is a practical fit for people who want activated-carbon filtration beneath the sink, a direct connection to their existing faucet, and a long rated cartridge life for municipal water. Its chlorine, taste, and odor reduction focus makes it suited to everyday drinking and cooking, while the specified thread sizes help determine whether it matches your sink’s cold-water line.