Description of the product premier chest drainage solution for thoracic, Cardiovascular, Trauma and critical care high negativity float valve preserves the water seal in the availability of high negativity. Water floats the valve up into the closed position when excessive valve opens, Negativity occurs upon decrease in negativity. Collection chamber marking surfaces are for making notations use pen or pencil. Self sealing diaphragms self sealing diaphragms are available on the surface of the unit to modify the fluid levels sterile water or saline in the suction control and water seal chambers floor stand helps prevent tipover swings out for stability in use the floor stand contains an automatic locking mechanism that locks the floor stas well as within the open position to close, Press locking tab to retract floor stand. Patient tubing not made with natural rubber latex tubing support