Cytiva, 18111300, BPG column spare parts recommended to keep on site

Net 23 μm end piece, BPG 140, PP (pack of 2)
Recommendations for BPG column spare parts: O-rings and nets should be checked regularly for wear. Worn O-rings may not seal properly and over-used nets can affect distribution. Inspect the O-rings and evaluate the height equivalent to a theoretical plate (HETP) and peak asymmetry factor (As) to prevent poor performance due to old nets.
We recommend you to change the nets and O-rings when needed or at least annually. Please keep a set of each on your site, for code numbers refer to the table below. The column is delivered with O-rings in Ethylene propylene diene (EPDM). Ethylene propylene diene change characteristics when exposed to some organic chemicals. For repetitive long term use, use Fluoroethenepropene (FEP) polymers. 23 µm nets are supplied with the column and recommended for beads with an average particle diameter between 70-150 µm. For an average particle diameter < 70 µm use 10 µm or 12 µm nets and for an average particle diameter > 150 µm use 54 µm nets.