Address: 1016 Dale Lane
Mt. Vernon, WA 98274
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Phone: (360) 428-5880
Fax: (360) 424-8118

Mark 3X Column

U.S. Patent: 4,842,644

The Hallmark Mark 3X Column is an industry standard for pressurized silver recovery systems. It is 19.75” in diameter and 20.5” tall. This column contains 6 pounds of chopped iron fiber for the best in silver recovery. A unique method of packing and internal distribution assures the highest volumes of throughput and excellent silver recovery performance. Tests indicate that up to 40 Troy ounces of silver can be recovered. A box is provided for shipping of the used columns by UPS or Fed Ex. The fitted top support has foam padding and the column has caps to provide secure shipping. Used columns are returned in the same box used to ship new columns.

Key Benefits

  • The column is recycled and reused to minimize its environmental impact
  • Rugged polyethyelene shell for durability
  • Quick Disconnects make column changes easy - color-coded for a "no error" installation
  • Used columns are securely returned in the same box used to ship new columns
  • Can be shipped UPS or Fed Ex Ground to Hallmark Refining
  • Properly managed, silver discharge levels can be maintained at or below 1 ppm
  • Designed for pumped applications only - NOT for gravity fed systems


Column Potential Primary 300 gallons Dry Shipping Weight 13 pounds
Column Potential Tailing 500 gallons Wet Shipping Weight 40 pounds
Recovery Efficiency as low as 1 ppm Recovery Capacity up to 40 Troy Ounces