Home Depot, Canadian Tire, Rona and Walmart all dont seem to have any drain cleaners that have KOH in it, or at least they dont list it on the label as KOH, Potassium Hydroxide or Lye.

The brand im seeing everywhere is ZEP!, and im not seeing much else...

does ZEP! heavy duty drain cleaner have KOH in it, does anyone know?

or where else can i order just some pure KOH, like an online store or something [in canada preferably, as im in toronto, ontario] ?

How did you all find it if you didnt get it from finding a drain cleaner that said its made with KOH?

If I can't find it what would be equally as good, or is nothing equally as good...