Unique Top-Fill Fount does not have to be dissembled for filling. 
Large 4-1/2” top opening eases filling and gives access to the inside for cleaning. Two molded handles allow fount to be carried even when full.  Water level is always visible in the translucent poly tank marked with one-gallon increments. Seamless, 2-3/8” deep trough can be removed from tank for extra cleaning.  16-1/2” diameter fount.
Lid does vary from the picture above. The new lids do not screw on all the way down. Manufacture has changed the design.