Polylok Pop-Up W/ 90 & Internal Coupler No Weep Hole 4" | PLKPDB4PEKITIT4X

Key Features

• Allows water captured by grates, catch basins, channel drains, flow-well, downspouts and roof gutter systems to flow through the drainage pipe and to a water safe area such as a gutter
• Opened by the hydrostatic pressure of water flowing through the drain pipe, as flow diminishes the emitter closes again
• Great for discharging water from retaining walls and street curbs
• Fits 4 in. Hub sewer and drain fittings
• Flow gate opens with minimal pressure
• Closed during dry weather to help keep debris and rodents from entering the drain pipes