The HUM Water Care Neutralizing Filter Calcite 1.0 Cubic Foot is a fully automatic whole-home acid neutralizing system designed to help raise and stabilize low pH acidic water conditions. Using calcite media and a premium Made-in-USA control valve, this system is ideal for correcting acidic water before additional treatment equipment or for post-treatment pH correction after a whole-house reverse osmosis system. Key Features • Helps raise and neutralize acidic water• Ideal pretreatment or post-treatment pH correction system• Premium Made-in-USA control valve• Fully automatic operation• PowerCell backup retains settings during outages• Compatible with constant pressure and jet pump systems• Bypass valve included• Tool-free valve servicing design Designed for Acidic Water Correction Low pH water can contribute to: • Corrosive plumbing conditions• Metallic taste• Blue-green staining• Premature fixture and appliance wear This calcite neutralizing system helps raise water pH naturally to reduce corrosive effects and improve compatibility with downstream water treatment equipment. Ideal Applications • Pretreatment before water softeners or filtration systems• Post-treatment pH correction after whole-house reverse osmosis systems• Residential well water applications• Homes with acidic water conditions Reliable Automatic Operation The system features a fully automatic electronically controlled valve designed for dependable long-term performance and easier operation. Valve Features Include • Electronically controlled operation• PowerCell backup for settings retention during outages• Tool-free valve disassembly in under 5 minutes• No nuts, bolts, screws, or springs for simplified servicing Flow Rates • Recommended service flow rate: 3–6 GPM Installation & Compatibility • Fully compatible with constant pressure systems and jet pumps• Includes bypass valve Specifications • Product Number: WD CFNU10• Model: WD CFNU10• Media Type: Calcite• Media Volume: 1.0 Cubic Foot• System Type: Whole House Neutralizing Filter• Application: Raising and stabilizing low pH water• Valve Type: Premium Made-in-USA electronic control valve Additional Information • Setup manual available for download• Clack valve manual available for download