Knockout Drain Toilets & Urinal Unblocker 500ml Caustic Liquid

• Powerful outside drain and toilet unblocker designed to be a safer alternative to sulphuric acid unblockers


• Rapidly dissolves organic material to free up blockages


• Boosted caustic liquid formula for easy application at the right strength for wide bore pipes and drains


• Ideal to speed up slow draining plug holes and as a general maintenance to keep drains open