FUO1003 Features: * Inset lid keeps gravel from falling into the vault * Pump discharge step fittings for 1.5" and 2" pipe provided on both sides of the vault * Flat front panel installs tight against the SustainTanks for a compact basin * Max pump flow: 3,900 GPH * Top opening: 10" * Outlet: 1.5" or 2" Dimensions: * Dimensions: 22.5" H x 17" W x 12" D