Description
Watts F391008 LF909QTFS-3/4 Lead-Free Red Zone Backflow Preventer Assembly
The Watts F391008 LF909QTFS-3/4 Red Zone Assembly is a lead-free, reduced-pressure zone (RPZ) backflow preventer assembly engineered to provide dependable cross-connection control in hydronic, plumbing, and HVAC water systems. Designed to meet stringent lead-free compliance requirements, this assembly is ideal for potable water protection applications where code compliance and long-term reliability are essential.
Key Features
- Lead-free (LF) construction for compliance with NSF/ANSI and lead-free plumbing codes
- 3/4″ pipe size for versatile installation in residential and light commercial systems
- Red Zone (909 series) reduced-pressure principle design for superior backflow protection
- Compact assembly configuration for streamlined installation and serviceability
- Durable internal components designed for long service life and minimal maintenance
- Compatible with standard 3/4″ pipe fittings and connections
Applications
- Potable water supply protection in residential and commercial buildings
- Hydronic heating and cooling systems requiring cross-connection control
- Irrigation and fire suppression system backflow prevention
- HVAC water systems requiring code-compliant backflow protection
Why Choose Watts Backflow Prevention?
Watts is a globally recognized leader in flow control and water quality solutions. The LF909QTFS series delivers proven reduced-pressure zone protection backed by Watts’ engineering expertise, ensuring your system meets local and national plumbing codes while safeguarding water quality.







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