Happen to have the 2004 Artesian Dealer manual here and it says: The Nexum is limited to 4 colors, 1 yr warranty, no circ pump otion. The Captiva would have better jets, better warranty, more color options, optional stereo, waterfall, SS jet collars, and you can order the captiva in 17, 29, 38, or 46 jet combos with 1, 2, or 3 jet pumps and or a circ pump.