GD PAK Separators come in three different capacities: 7, 27 and 84 gallon spanning six sizes. Which unit is right for you is dependent on the size of your operation and the amount of carryover that makes its way into the condensate of your compressed air system. The sizing and life expectancy chart below assumes typical air compressor conditions, but can vary depending on the age and maintenance of your compressor(s).

Life expectancy of a GD PAK unit depends on the amount of lubricant carryover produced by your air compressor(s). Contaminant absorption capacity is approximately half of the media bed volume. Therefore, the six GD PAK units have capacities of about 3, 6, 8, 10, 23 and 28 gallons of contaminant respectively.