Compatible Model: RO100DS/CEL Mineral Filter Healthier Drinking Water: Mineral balls constantly release easily-absorbed minerals, all essential to human body, into the drinking water. Longer Service Life: High-quality and durable filters reduce the number of times they need replacing and cut your running costs. With a lifespan of 12 months, filter replacements will be minimal. Working Pressure: 14.5 to 58 PSI; Working Temperature: 5 to 38°C