The filter casing assembly comes apart into two sections.
To take them apart, rotate the top and bottom sections
in a counterclockwise direction.

Please screw filter housing together only by hand.

Insert the tip end of the fiber filter cartridge into the center
of the filter case (top).

Then, firmly tighten the filter case (top)
and filter case (bottom) together.

At the tip end of the upper case, a black rubber gate is used as constant flow valve.
A new constant flow valve is included in the delivery of the fine filter cartridge.