Reverse Osmosis Comparison

made in usa Galaxy 5-Stage RO Aquapurion RO All American RO All American Alkaline RO
  Galaxy Aquapurion American-Made American-Made Alkaline
Price: starting at $269.95 starting at $350.95 starting at $559.96 starting at $709.96
# Stages 5 5  5  6
Membrane GPD: 50 50-100 100 100
Membrane Brand: US Water Systems US Water Systems US Water Systems US Water Systems
Warranty: 3 Years 3 Years 5 Years 5 Years
100% American Made:    
Best Feature: Best Value Most Popular Most Popular Includes Alkaline
American Filters:
Inlet Valve: John Guest John Guest John Guest John Guest
Tank To Faucet Size: 3/8" 3/8" 3/8" 3/8"
Icemaker Hookup Not Recommended Yes - Optional Kit Yes - Optional Kit Yes - Optional Kit
Faucet: Standard Chrome Upgraded Upgraded Upgraded
Optional Air Gap Available: No
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Tank Size: 4.5 Gallon 4.5 Gallon 4.5 Gallon 4.5 Gallon
Stage 1 Filter: Sediment Filter Sediment Filter Sediment Filter Sediment Filter
Stage 2 Filter: Carbon Block Carbon Block Carbon Block Carbon Block
Stage 3 Filter: 2nd Carbon Block 2nd Carbon Block Chloramine Filter Chloramine Filter
Stage 4 Membrane: US Water RO Membrane US Water RO Membrane US Water RO Membrane US Water RO Membrane
Stage 5 Filter: GAC Filter GAC Filter GAC Filter GAC Filter
 

* Purchase of Air Gap Faucet required