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 and reliable filtration.Multi-layer Filtration: Our water purifiers use a multi-layer filtration system with activated carbon and an ion exchange resin to reduce odors and improve taste. We include 30% more ion exchange resin than comparable filters (visible as a yellow substance inside the filter), which helps reduce TDS, chlorine, calcium, magnesium, and other ions in water. Note: Actual performance may vary depending on your water source and region.Protect the Environment: Each replacement filter can filter up to 40 gallons of water, equivalent to avoiding approximately 500 plastic bottles (300ml each) of bottled water. This helps reduce plastic waste and supports environmental sustainability.Replacement 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 taste, we recommend replacing the filter every month. When the filtered water develops a sour or off taste, it is time to replace the filter.Color: White Material: Plastic + Resin Package Contents: 3 x Water Filters Note: Light reflection and differences in display screens may cause slight variations between the color shown in the image and the actual product. Measurement may vary by +/- 1-3 cm.