General description Our 2 x 5 Litre Heavy Duty Sink & Drain Unblocker is designed to effectively clear clogs caused by food, hair, and other blockages in your sinks and drains. This powerful solution ensures that you can enjoy a clean and functional sink or shower without the hassle of standing water. Technical specifications Volume: 5 Litres (5000 Millilitres) Usage Add 1 Litre of product to the affected sink or drain. Allow the solution to work for at least 5 minutes. For best results, leave for up to 30 minutes. Flush through with hot water after treatment.