Watts LF909-NRS-FS 4 - Part of the LF909 Large Series Window Well Extension High-Flow Capacity – Comparable in

High-Flow Capacity – Comparable in volume to a 12-inch pipe

Available in zinc-plated carbon steel or stainless steel

ZN1910-2IP

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

Integral Backwater Valve with Plastic Ball Float and Bronze Bushing — Prevents backflow during surges or system pressure reversals

Watts LF909-NRS-FS 4 - Part of the LF909 Large Series Window Well Extension High-Flow Capacity – Comparable inThis 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