Vital-Flo Tankless Water Heater Descaler Solution,13.2 OZ

4387-02 Nu-Calgon Vital-Flo Tankless Water Heater Descaler Solution

The Nu-Calgon 4387-02 Vital-Flo Descaler Solution is a professional-grade cleaning chemical formulated for removing mineral scale, lime, and calcium buildup from tankless water heater systems. Designed for safe use in residential, commercial, and industrial descaling operations, this solution restores thermal efficiency and heat transfer performance in on-demand water heating equipment. Its non-corrosive formulation ensures compatibility with common heat exchanger materials while maintaining operator and system safety during use.

Technical Specifications

• Manufacturer: Nu-Calgon
• Model Number: 4387-02
• Product Name: Vital-Flo Tankless Water Heater Descaler Solution
• Container Size: 8 oz (237 mL)
• Product Form: Liquid
• Chemical Type: Acid-based scale removal compound (proprietary blend)
• Color: Clear to light amber
• Odor: Mild, non-offensive
• pH (Concentrate): < 2.0
• Density: Approximately 9.3 lbs/gal (1.12 g/cm³)
• Operating Temperature Range: Ambient to 140°F (60°C)
• Application: Descaling and maintenance of tankless water heaters, heat exchangers, and hydronic coils
• Compatibility: Safe for use on copper, brass, stainless steel, and plastic system components
• Dilution Ratio: Typically mixed with 1–2 gallons of water per system manufacturer’s instructions
• Storage Conditions: Store in a cool, dry area; keep sealed when not in use
• Regulatory Compliance: Meets EPA and OSHA safety standards for non-corrosive maintenance chemicals

Professional Notes

The Nu-Calgon 4387-02 Vital-Flo Descaler Solution is intended for professional HVAC, plumbing, and mechanical contractors performing preventive or corrective maintenance on tankless water heater systems. The formulation effectively dissolves mineral deposits that impede heat transfer efficiency, restoring flow and system performance without damaging metals or seals. Proper use requires circulation of the diluted solution through the heater via a service pump for the manufacturer-recommended duration, followed by a fresh water rinse. Always adhere to safety data sheet (SDS) handling instructions and use appropriate PPE during descaling procedures.

Summary

The Nu-Calgon 4387-02 Vital-Flo Descaler Solution is an 8 oz professional-grade descaling agent for tankless water heater maintenance. Designed for safe and effective removal of scale and mineral buildup, it ensures optimal heat transfer efficiency and long-term system reliability in residential, commercial, and industrial applications.