Description
The Watts F382008 is a 3/4″ thermostatic mixing valve from the Watts 740-030-FS series, engineered to deliver reliable, precise water temperature control in hydronic heating and plumbing systems. Designed for residential and light commercial applications, this valve blends hot and cold water supplies to maintain a consistent, safe outlet temperature — protecting against scalding and thermal shock while improving system efficiency.
Key Features
- 3/4″ valve size suitable for residential and light commercial hydronic systems
- Thermostatic mixing action for consistent, safe outlet water temperature
- Watts 740-030-FS series design for dependable long-term performance
- Compact, durable construction built to withstand demanding hydronic environments
- Helps protect against scalding by limiting outlet water temperature
- Easy installation with standard 3/4″ connections
Applications
- Hydronic heating systems
- Domestic hot water tempering
- Radiant floor heating supply lines
- Boiler system protection and temperature regulation
- Light commercial plumbing and HVAC installations
Why Choose Watts
Watts is a globally recognized leader in flow control products, delivering innovative solutions for water quality, conservation, and safety. The 740 series thermostatic mixing valves are trusted by HVAC and plumbing professionals for their accuracy, durability, and ease of installation.









