Watts / Flowmatic Quantity in Basket: None Code: MAXPB-20 Price: $48.32 Shipping Weight: 4.00 pounds Quantity: "C-MAX SOLID BLOCK ACTIVATED CARBON CARTRIDGE, THICK WALL 0.5 MICRON COCONUT SHELL FOR LEAD AND CYST REDUCTION, 20"" x 2.75"" NSF 42 materials only"