Step 1

In a medium saucepan over medium heat, bring vinegar, salt and sugar to a boil.

Step 2

Boil until the sugar has dissolved, about 10 minutes.

Step 3

Place the cucumbers, onions and green bell peppers in a large bowl.

Step 4

Pour the vinegar mixture over the vegetables.

Step 5

Transfer to sterile containers and store in the refrigerator.