Rugged Construction Ensures long, useful life. Easy to fill, lid is easily removed for filling. Safe for medications. The water level is easily read, there are 1 gallon markers on the side. This fount is easy to carry and to clean. It can be used with fount heater. 4 gallon will serve approximately 75 pullets or 140 chicks. 16" x 3.4" x 15"