This Secondary Debris Filter is rated at 25 microns and is a "screw-on" mount.
If your AlgaeSep system is newly installed, your fuel supply may have a good amount of debris in the fuel. This debris will be collected in the drainage area of the AlgaeSep system as well as this secondary replacement filter. You may need to replace this filter several times until your tank is clean.
Normal service Interval is approximately every 250 hours.