Bashsea SMS-4818 Smart Series Sump, 48 X 18 X 16 in. – Black/GrayVersatile triton method saltwater and reef sump system with 3 sections, for aquariums up to 450 gallons.Technical Specifications:ManufacturerBashseaProduct LineSmart Series SumpsProductSMS-4818-BKUniversal Product Code-Available StylesBlack / GreyPhysical PropertiesDimensions (L x W x H)48 x 18 x 16inWeight50lbPhysical Properties (with packaging)Dimensions (L x W x H)52 x 22 x 20inWeight55lbAcrylic ThicknessTop.25inSides.25inBaffles.25inBottom.25inPropertiesCord Control5Probe Holders1Drains3 @ diameter of 1.5 inSocks3 @ diameter of 4 inDosing Inputs3 groups of 4 @ diameter of .3 inSump Section 1Dimensions (L x W)24 x 17.5inAdjustable GateYesMin Water Height5inMax Water Height14inSump Section 2Dimensions (L x W)17.5 x 16.5inAdjustable GateYesMin Water Height5inMax Water Height9inSump Section 3Dimensions (L x W)11 x 6.5inAdjustable GateNoMin Water Height-Max Water Height-