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 purifier uses a multi-layer filtration system with activated carbon and an ion exchange resin to reduce odors and improve taste. It contains 30% more ion exchange resin than standard filters (visible as a yellow substance inside), which helps reduce TDS, chlorine, calcium, magnesium, and other ions. Note: Filtration performance may vary depending on your water source. Protect the Environment: Each filter can purify up to 40 gallons of water, equivalent to eliminating approximately 500 plastic water bottles (300ml each). This helps reduce plastic waste and supports environmental conservation. Replacement Models: Compatible with Zero Water pitchers 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, ZBD-040-1. For best results, replace 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 (only the items listed, other accessories not included) Note: Actual color may vary slightly due to lighting and screen settings. Measurement may vary by +/- 1-3 cm.