Compatible Model: RO100DS Granular Activated Carbon Filter Enhanced Filtration: Made with coconut-based activated carbon that has way higher micro-pores density than the activated carbon-based on wood or coal, the granular activated carbon absorbs heavy chlorine and chlorine by-products. 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, but with an easy Drop-&-Go changeover, that’s something you don’t need to worry about. Working Pressure: 14.5 to 58 PSI; Working Temperature: 4 to 40°C Filter Element Of Reverse Osmosis Under-Sink 100GPD-DS/CEL-GAC