Delta Foundations® Monitor® 13 Series Shower TrimComplete the look in your bathroom with a shower from the Foundations Bath Collection. Delta showers with Monitor pressure balance valves are engineered to make sure you dont experience a sudden and possibly unsafe change in water temperature as a result of running water elsewhere, such as using a dishwasher, flushing a toilet or running a washing machine. Delta WaterSense labeled faucets, showers and toilets use at least 20% less water than the