Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Fast Acting Heavy Duty Drain Gel, Dissolves Clogs, Works 3x Better Than Bleach, Safe for All Pipes, 500ml : Amazon.co.uk: Health & Personal Care
One Chem Heavy Duty Sink & Drain Unblocker 5L
Kleen Off Sink and Drain Cleaner 500ml Kills Germs Neutralises Odours in 15 Mins