• Ultra-low dispersion, easy to use operate at pressures up to 1000 bar
  • Collect strongly retained compounds from the sample and minimizes column fouling
  • Finger-tight, direct connect units that auto-adjust to any column with a 10 – 32 inlet port
  • Easily replace guard cartridge without removing guard holder from the flow path
  • Available for all HALO® analytical column IDs – 2.1, 3.0 and 4.6 mm IDs and bonded phases

How to purchase Guard Columns for HALO Analytical columns:

  1. Select phase from bonded phase dropdown to match HALO® EnviroClass analytical column
  2. Select Particle Sizes to match HALO® EnviroClass analytical columns
  3. Select Column ID either 2.1, 3.0 or 4.6 mm to match analytical UHPLC column
  4. Once item is selected purchase selected item
  5. Required: Purchase 94900001 to connect all HALO® EnviroClass Guard cartridges to a HALO® EnviroClass analytical column with a 2.1, 3.0 and 4.6 mm column IDs