Sawyer SP150 Cleaning Coupling

Easy Cleaning To clean your filter with the Cleaning Coupling, remove the push-pull cap from your filter, attach the Coupling, then screw the other side onto the threaded top of a standard plastic water or soda bottle (28mm thread) filled with clean, filtered water. Once attached, you can forcefully squeeze the bottle to backwash and clean your filter. Repeat as necessary until the water comes through clear and easy.