Gel Solve is a Proactive caustic Drain Maintainer and Unblocker. Designed to aid the free flow of waste water from pipes and traps by dissolving Hair, Body Fats, Kitchen Fats, Grease and Soap Scum from Showers, Baths and Sinks etc which can build up and ultimately cause blockages. Ideal for use in bathrooms or kitchens where the waste pipe has a low angle fall off and constantly blocks or drains slowly. Can also be used in Urinals to stop the build up of Uric Scale. Available in 5 Litres