WK18 3 Years Under Sink Water Filter, 18000 Gallons, 2.1GPM, 0.5μm
WK18 3 Years Under Sink Water Filter, 18000 Gallons, 2.1GPM, 0.5μm
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About This
- 【Up to 3 Years of Filter Life】Designed for long-term use, this under sink water filter system delivers up to 18,000 gallons of filtration capacity and lasts up to 3 years — far longer than ordinary water filters under sink. The upgraded filtration area with 20× expanded surface area enhances contaminant-holding capacity, helps reduce clogging, and maintains consistent water flow, so you can enjoy reliable performance from your under the sink water filter without frequent replacements.
- 【2.1 GPM High Flow Filtration】Experience fast and steady water flow with this under sink water filtration system, delivering up to 2.1 GPM high flow performance without sacrificing filtration quality. Fill a cup in about 3 seconds and enjoy smooth water flow for cooking, washing vegetables, making coffee, and other daily kitchen tasks.
- 【NSF Certified Safety & 0.5μm Filtration】WK18 Under Sink Water Filter is built with NSF/ANSI 372 certified materials and advanced 0.5μm precision filtration to help reduce lead, chlorine, sediment, bad taste, and odor. This under counter water filter serves as a high-performance kitchen sink water filter, providing cleaner, better-tasting water while preserving beneficial minerals for daily drinking, cooking, and beverages.
- 【Easy 3-Minute Installation】This water filter under sink installs in about 3 minutes with no professional tools required. The upgraded brass connector provides a stronger, more secure connection than traditional plastic fittings, helping reduce leak risks. Flexible installation options support vertical placement or wall mounting to fit different cabinet spaces.
- 【3-Second Filter Replacement】Replace the filter in just 3 seconds with the twist-lock design—no tools required. The anti-slip grip texture allows quick and easy filter replacement, even with wet hands. Compatible replacement filter (ASIN:B0D5XMQ633) at only $39.99 per filter, helping reduce long-term maintenance costs.
- 【Multi-Scene Water Filtration】Designed for versatile use, thisunder the sink water filter system connects to standard cold water lines and works for kitchens, apartments, offices, and RVs. Ideal for cooking, food preparation, coffee making, and everyday water needs.**Only for cold water use.**
- 【After-Sales Assistance】Vonwater provides reliable customer support after purchase for installation guidance, product questions, and maintenance assistance. Designed for municipal tap water and cold water use only, this under sink water filtration system is not suitable for well water or hot water sources.
Overview
- Brand : VonWater
- Special Feature : 3 Years, Easy Installation, NSF/ANSI 372,Chlorine Reduction,0.5 μm Filtration Accuracy
- Product Dimensions : 4.76"L x 6.57"W x 14.56"H
- Material : Activated Carbon Block
- Capacity : 18000 gallons
- Included Components : Inlet hose * 1, Outlethose * 1, 1/2"-3/8"Convertor Adapter* 1
- Package Information : Box
- Installation Type : Under Sink
- Purification Method : Granular Activated Carbon
- Model Name : WK Series

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