Where can I find Heavy duty detergent powder in Mertloch?

Heavy duty detergent powder can also be found in these cities:

Andernach Bendorf Cochem Kobern-Gondorf Koblenz Mülheim-Kärlich Münstermaifeld Neuwied Nickenich Plaidt Schwall Treis-Karden Waldesch Weißenthurm

You can also find this in Mertloch:

Semolina Porridge Cake Vanilla Sugar Jelly Ice Cream Desserts Meat Products Lemonades Instant Coffee Pumpkin Seed Roll Canned Meat