Atlantic Water Gardens Natural Basalt Columns are made of attractive volcanic basalt, drilled to create overflowing water features. These hexagonal pillars have a snapped top for uniqueness and a sawn base for stability. Over time, the basalt oxidizes to form attractive multi-colored patina over time.Ships by truck freight. You must be available at time of delivery 24" Kit: Model: FKNBC24 #73809 Weight: Estimated 161 lbs. Plumbing Kit: FBKIT1 Basin Size: FB2400 Pump: FP400 Includes: 24" Basalt Column, FB2400 Fountain Basin, FP400 Fountain Pump and FBKIT1 Plumbing Kit Warranty: 3 year Estimated weight 190 lbs 3 Piece Kit: Model: FKNBCX3-18-30 #92242 Plumbing Kit: FBKIT3 Basin Size: FB3500 Pump: TT2000 Warranty: 3-year Estimated weight 450 lbs 3 Piece Kit: Model: FKNBCX3-2436 #73811 Plumbing Kit: FBKIT3 Basin Size: FB4700 Pump: TT2000 Warranty: 3-year Estimated weight 588 lbs.