Guard Hardware

• Convenient and economical leak-free guard cartridge system, extremely easy to install.
• Versatile configuration protects against all levels of contamination.
• Integral design eliminates troublesome tubing connections.

Unlike “one size fits all” guard systems, the Trident Direct system gives you the power to select the right level of protection for your analysis. The system offers three levels of protection and guard cartridges in four dimensions, with a variety of bonded phases to match your analytical column. The economical, leak-free cartridge design provides an unprecedented combination of convenience, economy, and reliability.

A Trident in-line guard cartridge holder can be used with almost any HPLC column by connecting it with a short piece of 1/16″ tubing, appropriate nuts and ferrules, or finger-tight fittings. The system can be used with Restek columns, or with columns from other manufacturers. Holders are available for either 10mm or 20mm guard cartridges. Either size can be purchased with or without a prefilter, which provides added protection against the particles that can shorten the lifetime of the guard cartridge.

• Cost-effective protection for UHPLC systems.
• Reliable way to extend column lifetime.
• Universal fit—connects easily to any brand column.
• Leak-tight to 15,000 psi (1034 bar).
• 0.5 µm titanium filter in stainless steel body with PEEK ferrule.

• In-line design installs easily with standard fittings.
• Cost-effective protection for UHPLC systems.
• Reliable way to extend column lifetime.
• Leak-tight to 15,000 psi (1034 bar).
• Replaceable 0.5 µm stainless steel filter in stainless steel body.

Restek’s high-pressure in-line filter is a stand-alone version of the Trident column protection system, specifically designed for ease of use, low dead-volume, and flexibility. The filter has a replaceable, PEEK encapsulated 316 stainless steel frit with a surface area of 12 mm². The standard frit with 2.0 µm porosity may be replaced with an optional 0.5 µm porosity frit. Use of this filter can greatly extend column life, thereby reducing costs and saving maintenance time. Tubing 1/16″ OD; connectors–CPI.