Liqui-Genius Crystal Clear Drain Cleaner – One Shot 50g Bottle. The safe and fragrant way to clear drain blockages. One dose will clear your slow running drains. Just pour and let the powder work it’s magic! The 50g is the perfect size for housekeeping to keep on their trolley ready for weekly use. Also available in 1kg bottle. Liqui-Genius Crystal Clear Drain Cleaner – One Shot 50g Bottle can be used for drains, toilets & urinals, grease traps and septic systems. Find the directions for use on the bottle label. If you’re still not sure on how to use then please give us a call on 01621 828882 and we will be happy to assist. Minimum order quantity is 8.