This filter is extra large with the filter housing a foot long and 34cm total length and 2 inches wide.
Inside is moisture beads, charcoal and cotton.
You can buy more replacement moisture beads here.
https://airgunarcheryfun.ca/silica-gel-desiccant-box-reusable-silica-gel-desiccant-damp-moisture-absorber-silica-gel-absorbent-box-color-changing/
