The Next by Danco HC660 HydroClean toilet fill valve solves the two biggest reasons for water loss in toilets: miscalibration and leaks. Many toilets waste water because the fill valve is not calibrated correctly or because internal leaks go unnoticed. This universal-fit valve is designed to fit most standard toilets and addresses both problems with built-in leak detection and easy calibration.
The HC660 refills quickly and features jets that clean the tank during operation. Its adjustable height (11 to 13.8 inches) accommodates a wide range of tank configurations, and the compact design fits in tight spaces. A signal confirms when a leak is detected, giving you peace of mind and helping you catch water loss early. Installation requires no tools, making replacement straightforward for homeowners and professionals alike.
Features and Benefits
- Tool-Free Installation: Installs easily without special tools, saving time and effort during replacement.
- Leak Detection with Signal: Built-in leak detection alerts you when a problem is found, preventing silent water waste.
- Water-Saving Calibration: Easily adjusts to the exact amount of water needed for efficient flushing, saving up to 4 quarts of water per flush.
- Quick Refill with Tank Cleaning: Refills rapidly and jets clean the tank interior during operation.
- Adjustable Height: Height adjusts from 11 to 13.8 inches after installation, even under pressure, for flexible tank compatibility.
- Universal Fit: Designed to fit most standard toilets with a compact size for tight tank configurations.
Specifications
- Brand: Next by Danco
- Model: HC660
- Body Material: Rubber
- Adjustable Height Range: 11 to 13.8 inches
- Anti-Siphon: No
- Water Savings: Up to 4 quarts per flush
- Installation: Tool-free
- Fit: Most standard toilets








