Tank Power 1: • Developed with Blue Ring® Technology using three layers of filtration, Tank Power 1 removes 10 times smaller particles than regular cartridges.• Water Filtration takes place through three different stages.• Tank Power 1s’ mesh microns start with 5 microns and end with 1 micron, which filters out 10 times smaller particles than regular cartridges, guaranteeing 99.9% filtration of all impurities.• FDA Approved, Food Grade Material• Power 1 longevity: up to 3 monthsTank Power 2:• Developed with MicroPores® Technology which guarantees the absorption of 99.9% of Chlorine Color, Taste and Odor.• Unique patent design and color• New conical shape, with a wider base that acts as an indicator for a correct cartridge installation.• FDA Approved, Food Grade Material• Power 2 Longevity: Absorption Performance lasts up to 6 Months  Tank Power 3: • Developed with MicroPores®   Technology which works with Power 2 guaranteeing the absorption of 99.9% of the Smallest Impurities, Organic Materials, Chlorine, Color, Taste and Gases.• Unique patent design and color• Protected in its plastic case, eliminating the risk of breakage or cracking guaranteeing the optimum performance.• New conical shape, with a wider base that acts as an indicator for a correct cartridge installation• FDA Approved, Food Grade Material• Power 3 Longevity: Absorption Performance lasts up to 6 Months