Whirlpool UltraEase RO Membrane
Whirlpool WHEERM Replacement Membrane:The Whirlpool WHEERM is the UltraEase™ replacement membrane for WHER25 reverse osmosis systems.The Whirlpool WHEERM RO Membrane has been certified and tested against NSF/ANSI standard 58 for the reduction of total dissolved solids and organic matter and has a rejection rate of 90-95%.The Whirlpool WHEERM Reverse Osmosis Membrane typically lasts a year, depending on your water's pH level and hardness. The membrane should be replaced after a decrease in water pressure or quality.