Mr Muscle® Drain Foamer combines two powerful liquids to unleash a mighty cleaning foam that deep cleans pipes and eliminates odours in your drain . Its powerful formula works 10x better than baking soda and vinegar* as a drain pipe unblocker, removing foul gunge and hair from any pipe in your home. Simply pour the full bottle of liquid drain cleaner down the plughole, then wait an hour and flush hot water from the sink through your cleaned drain. With expanding foam that cleans and stops odours by filling the entire pipe wall, Mr Muscle® Drain Foamer's unstoppable drain power allows you to clean less and live more. *Based on hair removal in laboratory testing