Delta Velum Monitor 14 Series Valve Only TrimVersatile style meets clean curves in the Velum Bath Collection, providing a beautifully modern aesthetic perfect for both contemporary and transitional bathrooms. Delta showers with Monitor pressure balance valves are engineered to prevent sudden and unsafe changes in water temperature caused by other household water usage, such as running a dishwasher, flushing a toilet, or using a washing machine. You can install with confidence, knowing Delta