Pure-Flo II - 50 gallon-per-day system includes:

50 GPD TFC membrane
1 micron filter cartridge
Carbon block filter cartridge
De ionization Cartridge
Ideal Source Water Conditions:
Chlorinated or non-chlorinated water supplies
Water pressure - 60 PSI
Water temperature range: 69 - 78 degrees Fahrenheit
Replacement Filters:
76009 - De ionization cartridge replace every six months or 2,500 gallons
76010 - 1 micron cartridge replace every six months minimum
76012 - Carbon block replace every six months or 2,500 gallons
76021 - 50 gallon-per-day TFC replacement membrane replace every 2 to 3 years
NOTE: Change times are varied depending water conditions. Stated times are an average.
Membrane Specifications:

Length: 11 3/4"
Diameter: 1 1/2"
Body Length: 10"
Specifications:
Length: 14"
Width: 5 7/8"
Height: 15"
Dry weight: 11 1/2 lbs.
3 gallons waste water to 1 gallon production water
Maximum Total Dissolved Solids (TDS) in source water less than 250 ppm
Membrane type: TFC (Thin Film Composite)
Rated Gallons Per Day: 50
Inlet for source water: 3/4" garden hose connection with faucet adaptor and 3/8" pressure tubing
Tubing type: 1/4" pressure tubing

Coralife Pure-Flo II Thin Film Composite (TFC) Reverse Osmosis Water Purification Systems generate purified water for aquarium use. The units remove hardness, heavy metals, toxins and many other tap water impurities. The Coralife Pure-Flo II units include clear filter canisters, cartridges and faucet attachments. The Pure-Flo II units are economical, convenient and wall-mountable. The Coralife Pure-Flo II units are usable with chlorinated and well-water sources. Great for Freshwater or Saltwater Aquariums.