iSpring RO500AK-BN Reverse Osmosis Water Filter, NSF 58 Certified, 500 GPD Tankless Under Sink RO System, Natural pH Alkaline Remineralization, 2:1 Pure to Drain Ratio, Brushed Nickel Faucet
iSpring RO500AK-BN Reverse Osmosis Water Filter, NSF 58 Certified, 500 GPD Tankless Under Sink RO System, Natural pH Alkaline Remineralization, 2:1 Pure to Drain Ratio, Brushed Nickel Faucet
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About This
- NSF 58 Certified - The iSpring RO500AK-BN tankless reverse osmosis system is NSF 58 certified for TDS reduction. Scan the QR code for the official NSF online test report. Industry-leading 2:1 pure-to-waste ratio reduces wastewater by up to 400% compared to traditional RO systems, lowering water bills and minimizing waste.
- 500 GPD Fast Water Flow - The RO500AK-BN reverse osmosis water filter system delivers up to 500 gallons of purified water per day, with a fast flow rate of 0.4 GPM—enough to fill an 8 oz cup in just 10 seconds. This high output of the reverse osmosis system ensures improved efficiency and minimizes waiting time for clean, refreshing water, making it perfect for homes, offices, coffee shops, and restaurants. Its tankless design saves up to 70% of under-sink space, offering a more compact and modern solution. Please note: This tankless ro system under sink requires access to electricity.
- Superb Filtration Performance - The RO500AK-BN ro water filter features a powerful 3-stage filtration process. It begins with a 2-in-1 composite sediment and carbon block filter to effectively reduce rust, sand, chlorine, and other particles. The advanced RO membrane removes up to 99% of over 1,000 harmful contaminants, including 98% of lead, as well as fluoride, arsenic, asbestos, calcium, and more. Finally, a carbon alkaline filter balances the water’s pH and adds beneficial minerals to enhance taste and support overall wellness.
- Easy, Hassle-Free Installation & Maintenance - Designed for convenient DIY setup, this system comes with a detailed instruction manual and is compatible with both 1/2” and 3/8” pipes. Its reinforced integrated water route ensures a secure, leak-free installation. Filter replacements are quick and tool-free, requiring no water shutoff. An automatic self-cleaning function activates after 24 hours of inactivity to rinse the RO membrane, extending its lifespan and maintaining optimal performance.
- Reliable Support & Warranty - Enjoy peace of mind with a 30-day money-back guarantee, a 1-year manufacturer warranty, and extended coverage available upon registration. iSpring’s dedicated customer service and technical support team, based in Atlanta, GA, is here to assist you for life.
- Convenient Replacement Filters - The F7-RO500AK filter pack offers high-capacity replacement filters designed specifically for the RO500AK tankless RO system, providing up to 2 years of hassle-free performance and easy maintenance.
Overview
- Brand : iSpring
- Special Feature : 2:1 Pure to Drain Ratio, Tankless
- Product Dimensions : 17.5"L x 5.2"W x 16.25"H
- Material : Reverse Osmosis Membrane & Carbon Block + PP Composite Filter& Carbon Alkaline Filter
- Capacity : 500 Gallons
- Included Components : Tubing, System, Feed water adapter, Drain saddle, Faucet, Power supply, manual
- Package Information : Box
- Installation Type : Under Sink
- Purification Method : Reverse Osmosis
- Item Weight : 21 Pounds

Experience the difference clean, softened water makes in your daily life — from healthier skin to better tasting drinking water.
👉 Softer skin and smoother hair with every shower.
👉 Prevent scale buildup and keep your appliances running efficiently.
👉 Softer, brighter clothes that last longer with every wash.
See the Difference in Your Water — Instantly
Hard water, chlorine, and hidden contaminants can affect your health, skin, and appliances.
Our advanced filtration system removes impurities and delivers clean, safe water throughout your entire home.
Feel the difference in every drop — from your kitchen to your shower.
FAQ
Water Filtration & Home Water Guide