Original Full Crystal Cleaner Spray with Powder Refill. 

A clean so clear, your glass will disappear!
The new cleaning system that quickly cleans windows, cars, RVs, boats, patio furniture, siding and more!. Simply put the Full Crystal cleaning powder into the specially-designed spray bottle, add water, and attach your garden hose. The powerful, built-in pressure sprayer reaches up to 27-feet away. So you can easily clean high windows, siding and more without using a ladder. Simply spray and rinse. Harmless to grass, plants and shrubs.