THE ORIGINAL LITTLE GIANT POULTRY FOUNTS HAVE BEEN USED BY POULTRY EXPERTS FOR YEARS. THESE DEPENDABLE WATERERS HOOK UP TO ANY STANDARD 1/2 INCH NPT PIPE TO PROVIDE A LIMITLESS SUPPLY OF CLEAN WATER. SAFELY OPERATES BETWEEN 10-70 PSI. HOLDS 2 PINTS OF WATER AND WATERS UP TO 175 BIRDS. BOWL MEASURES 6 1/2 INCHES IN DIAMETER AND 2 1/2 INCHES DEEP.