Brand new, unused. The water purification cartridge uses 97% natural materials: ceramic, activated carbon (activated carbon fiber), and non-woven fabric, making it difficult for bacteria to breed inside the cartridge, ensuring safe and clean water at all times. The water purification cartridge has a 5-layer filter structure that removes turbidity, musty odors, and inhibits the growth of bacteria. ✅ Standard type: Removes 12+1 substances. The non-woven fabric filter removes relatively coarse turbidity components such as rust. The activated carbon filter removes residual chlorine, musty odors, dissolved lead, and pesticides. ✅ Compatible product model numbers: JF-1450SX(JW), JF-1450SX/SE(JW), JF-1450SXN(JW), JF-1450SXN/SE(JW), JF-1451SX(JW), JF-1451SX/SE(JW), JF-1451SXN(JW), JF-1451SXN/SE(JW), JF-1460SX(JW), JF-1460SXN(JW), JF-2430S(JW), JF-2432S(JW), JF-2432SN(JW), JF-2450SX(JW), JF-2450SXN(JW), JF-2450SXN/SA(JW), JF-2451SX(J) ✅ Uses high-performance activated carbon, achieving the industry's smallest compact size. Easy to handle and replace the cartridge, and doesn't take up much storage space. ✅ Usage目安: Approximately 3 months (when using 13L per day). The lifespan of the filtration capacity may be significantly shortened depending on usage, water pressure, water quality (turbidity, red rust, etc.), the condition of the water supply equipment, the aging of the pipes, and plumbing work. Water purification cartridges that have exceeded the replacement period may not provide sufficient water purification capacity.