Bashsea SMS-3018 Smart Series Sump, 30 X 18 X 16 in. – White/GrayVersatile triton method saltwater and reef sump system with 3 sections, for aquariums up to 175 gallons.Technical Specifications:ManufacturerBashseaProduct LineSmart Series SumpsProductSMS-3018-WUniversal Product Code-Available StylesWhite / GreyPhysical PropertiesDimensions (L x W x H)30 x 18 x 16inWeight34lbPhysical Properties (with packaging)Dimensions (L x W x H)34 x 22 x 20inWeight38lbAcrylic ThicknessTop.25inSides.25inBaffles.25inBottom.25inPropertiesCord Control5Probe Holders1Drains3 @ diameter of 1 inSocks3 @ diameter of 4 inDosing Inputs3 groups of 4 @ diameter of .3 inSump Section 1Dimensions (L x W)17.5 x 13inAdjustable GateYesMin Water Height5inMax Water Height14inSump Section 2Dimensions (L x W)17.5 x 10inAdjustable GateYesMin Water Height5inMax Water Height9inSump Section 3Dimensions (L x W)11 x 6.5inAdjustable GateNoMin Water Height-Max Water Height-