Sodium hydroxide 96-99% caustic soda 770 grams plunger barrel - mega promotion

Sodium hydroxide 96-99% caustic soda 770 grams /1.7 lb plunger barrel a bucket with 1 gallon of warm water + - 30 º c, slowly dissolve 200 gramswait away a thermal reaction. then pour the solution in the pipe to unclog, + -15 wait a few minutes and pour about 1 liter of boiling water mix with hot waterwear rubber gloves danger of burns to skin and eyes