Liquid-Plumr Heavy-Duty Clog Remover: 80-oz. Bottle; 6 Bottles per Case. This item sells per Case. The quantity and unit of the master carton is 6/80 OZ. Americas #1 drain opener. Thickened formula goes through standing water straight to the clog. Dissolves hair and food particles quickly. Safe for disposals, septic tanks and plastic pipes.