Watts LF909-OSY-ALERT 4 - Part of the LF909 Large Series nwgf Cover O-ring Kit Type Relief

Cover O-ring Kit Type Relief Valve Rubber Parts Kit Lead Free YES Product Group BACKFLOW KITS UPC - 098268073461

anchor flange and 4 inch push on connection

Adjustable nickel-bronze round strainer with heel-proof grate ensures long term traffic durability

Key design factors include total vent area per code

Watts LF909-OSY-ALERT 4 - Part of the LF909 Large Series nwgf Cover O-ring Kit Type ReliefThis 4 inch lead free reduced pressure zone backflow preventer assembly with SentryPlus Alert technology for flood detection is designed to prevent the reverse flow of contaminated water from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements, as well as provide continuous monitoring, multi channel alerts, and automatic shutoff