CLR® Power Plumber®
The fast and effective way to unclog blocked drains. Uses the power of compressed air to remove clogs up to 50 feet down. Contains no CFCs that deplete the ozone. Non-toxic and is made without harsh chemical, acid or lye. Safe for all pipes, including plastic or metal drains and won't cause corrosion. Can use in standing water. 4.5 oz. aerosol bottle.