Watts LF909-NRS-FS 4 - Part of the LF909 Large Series Window Well Extension 25 IN Product Overall Width

25 IN Product Overall Width 1

The stormwater drain does more than drain water—it helps your drainage system run efficiently by blocking out leaves

709 Compatible Size Used On 10 IN Kit Contents Disc and Spring Assembly

It is recommended that an inch is left above the ground when installed so that surface roots can be quickly identified and clipped

both lock-down and load-rated to 2

Watts LF909-NRS-FS 4 - Part of the LF909 Large Series Window Well Extension 25 IN Product Overall WidthThis 4 inch lead free reduced pressure zone backflow preventer assembly prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It is ideal for protection in continuous pressure piping applications and at cross connections identified as health hazards and from other contaminants found at the service line entrance. This assembly consists of an epoxy coated cast iron body, non