Upgrade: This water filter features an additional rubber seal layer to prevent unfiltered water from leaking. The filter housing is made of environmentally friendly, food-grade plastic for safe filtration. Multi-layer Filtration: Our water purifiers utilize a multi-layer filtration system with activated carbon and an ion exchange resin to reduce odors and improve taste. Contains 30% more ion exchange resin than comparable filters (visible as yellow granules) to effectively reduce TDS, chlorine, calcium, magnesium, and other ions. Note: Filtration performance may vary based on regional water conditions. Eco-Friendly: Each replacement filter can purify up to 40 gallons of water, equivalent to eliminating approximately 500 plastic water bottles (300ml each), helping reduce plastic waste and protect the environment. Compatible Models: These Zero Water replacement filters are compatible with pitcher models ZR-001, ZR-003, ZR-004, ZR-006, ZR-008, ZR-012, ZR-017, ZR-600, ZP-007RP, ZD-013W, ZD-013D, ZR-0810G, ZR-0810-4, ZP-010, ZD-010RP, ZS-011RP, ZD-012RP, ZD-20RP, ZD-018, ZD-030RP, ZJ-003, ZJ-004S, ZP-006-4, and ZBD-040-1. For optimal performance and best-tasting water, we recommend replacing the filter every month or when the water begins to taste sour, indicating the filter has reached its capacity. Color: White Material: Plastic + Resin Package Contents: 3 x Water Filters Note: Light reflection and display settings may cause slight color variations between the image and the actual item. Measurement error allowed within +/- 1-3 cm.