APLOS Pumped/Non-Pumped Filter 4-5 APLOS 5-Stage Reverse Osmosis Filter is a compact DIY solution designed to improve the quality of your drinking water right under the sink. It features a Permeable membrane with a Granualar Activated Carbon filter. This product is only a replacement cartridge filter for the APLOS filter /R.O. system (Pumped/Non-Pumped) and does not include the filter housing.  It is recommended that the stage 4-5 Filters are replaced every 12-months. Stage 4: A permeable membrane, which will filter water molecules down to 0.0001 Micron (1 nm) Stage 5: A granular Activated Carbon filter (GAC filter).  Technical Data: - Working pressure range (Pumped Version): 3 - 6 bar- Working pressure range (Non-Pumped Version): 2 - 4.5 bar- Water flow rate: 5.6 l/min @ 4 bar- Max. temperature: 38°C- Min. temperature: 4°c Product Safety Notices: - Designed for use with cold water supply only.- Avoid using the system with water that is microbiologically unsafe or of unknown q