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. Will serve approximately 90 hens, 140 pullets or broilers. 16.5" x 3.4" x 21.3"