The UltraShield direct connect precolumn filter provides economical protection from harmful effects of sample and mobile phase particulates on modern UHPLC and high resolution HPLC columns. The UltraShield was engineered specifically for use in fast, high efficiency separations requiring high mobile phase velocities and ultra high pressure. It maintains efficiency of high performance columns assuring no loss of critical resolution. With its simple design, UltraShield 1010W installs into the Waters compatible analytical column in seconds and is leak tight to 15,000 psi.