Fits the Little Giant 1-Quart Screw-On Plastic Waterer Base (Item No. 740, sold separately; 1-Quart Plastic Feeder Base (Item No. 806, sold separately); 1-Quart Quail Waterer Base (Item No. 730, sold separately); Metal Baby Chick Feeder Base (Item No. 9810, sold separately); and Metal Baby Chick Waterer Base (Item No. 9826, sold separately)