The BEKO 4051809 is a replacement filter cartridge for the QWIK-PRE CS400 and iCS 550-3300 oil water separators.
When replacing the filter cartridge, you will want to turn the end cap counterclockwise to remove this and use the plug to seal the filter cartridge. The entire chamber can then be turned counter-clockwise and removed from the oil water separator base. The replacement cartridge can then be re-installed.
Note this item is for one single replacement cartridge. Depending on the model of your QWIKPURE oil water separator, you may need to purchase multiple quantities.
Part #: 4010719
Part #: 4011999
Part #: 4058816
Part #: 4058815