Hydron Suction Hose Extra Heavy Duty Size Available SizeSize 3"4" Koanaflex Suction Hose Premium Heavy Duty Size Available SizeSize 1"3" 1.5"4" 2”6" 2.5" Superflex Suction Hose Medium Duty Size Available SizeSize 1"2.5" 1.25"3" 1.5”4" 2"6"