iSpring RO5004F-AK UV Alkaline Reverse Osmosis Water Filter, SGS Tested PFAS and TDS Reduction, 500 GPD Tankless Remineralization RO System Under Sink, Filter Life Monitor, 2:1 Pure to Drain

SAVE BIG IN THE LONG TERM: With 20 years of industry experience, we know that maintenance can be a significant cost. Our replacement filters, including FP500, FC500SL, MRO5004F, and FG500AK, offer great value, are made with quality materials, and last longer.

MINERAL BOOST: The natural mineral AK stage adds essential minerals back to your water, delivering natural spring-tasting water with a balanced, healthy pH and multiple essential minerals.

EFFECTIVE FILTRATION: Independently tested by SGS for PFAS and TDS reduction. This tankless reverse osmosis water filter eliminates over 99% of 1,000+ harmful contaminants, including PFAS (PFOA and PFOS), TDS, vinyl chloride, chlorine, fluoride, lead, arsenic, asbestos, calcium, sodium, and more.

PATENTED DESIGN – The top-mounted fastener allows for easy countertop installation entirely from above, eliminating the hassle of tightening the nut from underneath the sink.

UV PROTECTION: The built-in UV light lasts up to 8,000 hours and includes filter lifespan monitoring to ensure regular maintenance for optimal performance.

SPACE-SAVING: This reverse osmosis system eliminates the need for a storage tank, freeing up valuable under-sink space.

BUILT-IN PUMP: Enhances RO membrane efficiency for faster water output and a better experience, especially in low water pressure environments.

QUIET OPERATION: Sleek, durable casing reduces noise while maintaining a clean, organized appearance.

HIGH FLOW: Provides up to 500 gallons of filtered water per day, over 5x faster than traditional RO systems—fills a cup in just 10 seconds.

FILTER LIFESPAN MONITOR: Quick twist-to-unlock design and automatic filter life reminders for easy maintenance and optimal performance.