Easily replaceable frits save you time and money lost to frit-cleaning labor, plus eliminate the problem of embedded debris re-entering your instrument. These frits are available in the most common HPLC filtration ratings. Each includes a PCTFE or PEEK polymer sealing ring, which are slightly thicker than the frit disc for extra sealing and chemical resistance. Many also have the most common outer diameters — 0.250" and 0.254" — making them ideal for use in inline or precolumn filters.