GWS specializes in Bottled Water in the 18 and 11 litre returnable bottles. Co packing is available. We test our water daily. Please visit our website for more details on our products available. GWS produces bulk distilled water (deionized) and reverse osmosis (demineralized) for industrial use. Our retail store location located at 183 Frobisher Driver in Waterloo Ontario has GWS water for sale in the 18 and 11 litre bottles. Spring Distilled and Reverse Osmosis water is available. We also have fill your own Spring and Distilled water available for just 15 cents per litre. GWS sells water coolers. We also offer a special discount to our customers for cooler cleaning. If you buy water from GWS Water Store bring in your cooler and we will clean it for $9.95. Regular $30 value.