Replacement guard cartridges can cost as much as an analytical column, so why not protect them, too? The removable cap frit filter in a Trident direct helps prevent clogged cartridges to extend the life of your column, your cartridge, and your budget.

• Use 2 mm cap frit filters with 1.0–2.1 mm ID analytical columns.
• Use 4 mm cap frit filters with 3.0–4.6 mm ID analytical columns.