Restek HPLC Frit Replacement, 1/4" 4.6 mm 0.5 µm, 10-pk.

We manufacture our frits from fine, chromatographic-grade 316 stainless steel, and we offer sizes to fit most column and pore sizes. To choose the correct frit, check its pore size compatibility with the particle size of the packing in the column. If the packing has a smaller particle size than the pore size of the frit, the packing can clog the frit.

Packing particle size:
3–4 µm—use 0.5 µm pore size
5–20 µm—use 2.0 µm pore size