Reusable night drain bottle, 4,000 mL (128 fluid ounce) capacity, made of HDPE (high density polyethylene), graduated from 500 mL to 4,000 mL in 125 mL increments. Includes (1) bottle cap (#4101), (1) bottle adaptor (#6003), (1) 60″ clear-vinyl drainage tube with nozzle and cap (#6061), (1) large gasket ring (#6000), (1) anti-reflux valve (#6001), (1) tube clamp (#6999) and directions for use.