Evolution RO1000 Membrane 500 gallons per day. Reduces 94% of total dissolved solids. Replace when product water flow rate decreases and/or PPM increases.

Directions: Lube 2 small O-rings on stem with silicone lubricant. Discard all water to drain for 1 hour prior to use.
IMPORTANT: Using non-original filters or membranes will VOID warranty.