Attwood's shower sump systems deliver the performance you've been asking for. Choose from the standard box or large box sizes. Offering fast water flow into andout of sump. The lid snaps in to allow quick installation (and removal for cleaning) andincludes a gasket to seal the sump box against overflow. The sump box even includes an air to prevent air locks. Meets or exceeds all applicable of the ABYC andUSCG. Installs quickly & easily using slotted mounting feet Easy removal & cleaning with straight mesh filter Quickly drains shower, sink or tub Pump automatically starts andremoves accumulated water as the sump box fills Check valve in inlet manifold prevents pump from cycling andreduces standing water odor 36" wire Amperage: 1.4 Amps Capacity: 500 Gallons per Hour Voltage: 12VDC