Manufacturer: Zurn
Part Number: 475NRS4
4" with NRS Valves
Backflow Preventers
Series 475 Reduced Pressure Principle Assembly
- Provides protection where
health hazards do not exist - Protects against back-
siphonage & back-pressure of
polluted water into the potable
water supply - ASSE® Listed 1013
- NRS Shut-off valves standard
- Designed for installation on potable water lines
- Maximum pressure is 175 psi
- Temperature range is 33°F - 140°F