Roebic HD-CRY-DO Professional Strength Crystal Drain Opener, Heavy Duty Cleaner Clears Clogs and Melts Grease, 100% Lye, 2 Lbs, 2-lbs, White : Amazon.ca: Health & Personal Care
Kleenout, Citrus Deodorizer & Degreaser for Drains and Plaster Traps
Zonk heavy duty descaler
Instant Power Enzyme Drain Cleaner, Drainage Clog Remover, 1-Gallon : Amazon.ca: Health & Personal Care