Can't see clearly? Then clean your windows with the GARDENA Glass Cleaning Agent. This is ideal for cleaning glass surfaces, windows, greenhouses, winter gardens. It was specially developed for the Original GARDENA Cleansystem. Through the circular shape, you can directly add it to the GARDENA Running Water Handles (Art. No. 5552-20, 5550-20, 5554-20) of the Original GARDENA Cleansystem and easily dosage it through the flow control. The Glass Cleaning Agent is biodegradable.