There are a million reasons to sing in the shower, but a clogged shower drain isn't one of them. Break down tangled hair and soap scum with Green Gobbler's drain opening pacs. Our perfectly pre-measured packets will slay the mightiest bathroom or kitchen clogs. Just pour, wait and rinse. Our drain opening PACs will leave you singing "livin' la vida loca." Green Gobbler drain opening PACs will clear the toughest clogs, guaranteed. Each package comes with three pre-measured powder packets. Pour one packet down your bathroom or kitchen drain to break down hair, paper, soap scum, feminine products, sludge and cigarette butts quickly.