Appliances such as refrigerators, dishwashers, and ovens are often integrated into kitchen cabinetry. It manufactures other major home appliances such as refrigerators, washing machines, and dishwashers. Santoprene TPV is used in washing machines, dryers, dishwashers, refrigerators, small appliances and floorcare. Some kitchens also have dishwashers and conventional ovens. More elaborate versions may include dishwashers, refrigerators, or sinks. In North America Asko only imports dishwashers and laundry appliances. Dishwashers and refrigerators are the main goods found inside the store. Households may produce wastewater from flush toilets, sinks, dishwashers, washing machines, bath tubs, and showers. Major consumption of hot water is sinks, showers, baths, dishwashers, and clothes washers. Many North American dishwashers tend to use exposed elements in the base of the dishwasher. Sources of grey water include sinks, showers, baths, washing machines or dishwashers. The most common application of this timer now is in washers, driers and dishwashers. Built-in dishwashers are rare, although some kitchens may have small dishwashers or dishdryers. Dishwashers and washing machines in similar styling and colours extended the retro range. Besides older style detergents for dishwashers, biodegradable detergents also exist for dishwashers.