WaterSentinel WSD-1 Scale, Lime & Hardness Build-up Hard Water Guard Dishwasher Cartridge UNIVERSAL (2-Pack)

WSD-1 (2 Pack) Water Sentinel Scale Guard. Helps prevent lime and scale build up in your dishwasher. The WaterSentinel Scale and Lime Guard for your dishwasher fights spots and residues that can redeposit on dishware during the rinse cycle. The WSD-1 is made with NSF listed high performance food grade scale reduction media that prevents the forming of scale and lime spots on your dishware leaving only sparkling dishes, glasses and cutlery. It also cleans the heating element which increases the efficiency of your dishwasher. Just place the unit into the dishwasher and let it do the work. Lasts up to 6 months. If your area has very hard water, 2 units may be required.