Description
The Watts F391010 is a 1-1/4″ shutoff valve designed as a replacement or service component for the Watts LF909M1-QT-FS reduced pressure zone (RPZ) backflow preventer assembly. Engineered to provide dependable isolation of the water supply, this shutoff allows technicians to service, test, or replace the backflow preventer without interrupting the broader system.
Product Overview
As part of the Watts 909 series backflow preventer family, the LF909M1-QT-FS is a lead-free, reduced pressure zone assembly widely used in commercial and industrial potable water protection applications. The F391010 shutoff is purpose-built to integrate seamlessly with this assembly, ensuring a secure, leak-free seal and smooth quarter-turn operation.
Key Features
- Designed specifically for use with the Watts LF909M1-QT-FS RPZ backflow preventer
- 1-1/4″ connection size for compatibility with standard commercial piping
- Lead-free construction for potable water compliance
- Quarter-turn operation for quick and easy shutoff
- Durable materials engineered for long service life in hydronic and plumbing systems
- Genuine Watts OEM replacement part (SKU: F391010)
Applications
- Potable water backflow prevention systems
- Commercial and industrial plumbing installations
- Hydronic heating and cooling systems
- Service and maintenance of Watts LF909M1-QT-FS assemblies
Why Choose Watts?
Watts Water Technologies is a globally recognized leader in flow control and water quality products. Their backflow preventer components are trusted by plumbing and HVAC professionals for meeting stringent regulatory standards and delivering consistent, reliable performance in demanding environments.
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