Description
The Sierra 4-stage reverse osmosis system delivers gallons of clean, clear drinking water. Choose from 36 gpd, 50 gpd, or 75 gpd membrane options. e Sierra features hygienically sealed filter cartridges and color-coded fittings for easy installation and service. When properly maintained, the Sierra system will provide you with years of trouble-free service. e cartridges in this system must be replaced on a regular basis to maintain efficiency and to ensure high water quality. Test your water every 6 months using a digital TDS meter. Consider membrane replacement when the TDS rejection falls below 85%.