The Signature Series 400 Pond Skimmer can handle pump flow rates up to 4,000 gallons per hour and is equipped with a 6” wide weir. The innovative locking weir door allows the weir door to be temporarily closed and locked to drain the water in the skimmer for maintenance. An included natural-looking faux rock lid helps to effectively conceal the filter while protecting the pump and internal components. Two bulkhead ports with injection-molded fittings allow the check valve to thread directly into the skimmer wall, providing a professional watertight seal along the back of the filter. Corrosion-resistant, non-cross-threading hardware stands up to the elements and the included overflow allows excess water to be properly re-directed.