Your 28 cu. ft. side-by-side refrigerator model No. WRS588FIHZ04 uses Everydrop Filter 1 (EDR1RXD1) water filter
A refrigerator filter isn’t just about cleaning water — it’s about keeping the entire system performing consistently. The Whirlpool refrigerator WRS588FIHZ04 water filter replacement, built with the genuine EveryDrop Filter 1 (EDR1RXD1), helps maintain that balance by reducing chlorine taste, lingering odors, and fine particles that gradually affect clarity and flavor. This keeps both water and ice quality stable, not just at the start, but throughout daily use.
Backed by NSF/ANSI certification, it supports dependable contaminant reduction you can rely on. The twist-in connection aligns properly and stays secure without leaks or tools. Replace every 6 months or 200 gallons to prevent buildup and keep water flow steady. Follow our replacement guide to stay on schedule and get the most from every cartridge. A quick 2-gallon flush after installation clears the line and delivers clean, great-tasting water from the first pour.
Most refrigerator water filters are designed to last approximately 6 months or filter up to 200 gallons of water — whichever comes first.
Modern LG, Samsung, Whirlpool, and Frigidaire refrigerators have built-in filter indicators that notify you when it's time for a replacement.
A drop in water pressure, an unusual taste, or an off smell from your dispenser are clear signs your filter is overdue for a change.