Brand new sealed.

The Aquasana AQ-4035 Countertop Replacement Filter Cartridges are designed for use with AQ4000, AQ4600, and AQ4601 models. These 4-stage filters use carbon/charcoal filtration to remove chlorine and other contaminants, providing clean and healthy water for both commercial and household use. The cartridges are made of carbon fiber and are available in white/blue, white, and blue colors. Each cartridge has a capacity of 450 gallons and comes in a pack of two. The product has passed California Prop 65 Warning and is manufactured in the United States.