This 500mL (16 ounce) low-density polyethylene wash bottle with polypropylene screw closure/stem and draw tube enables color-coding of reagents or coordinating with industry storage codes. Non-vented green closure and stem are molded in one-piece polypropylene for leakproof service. Tip can be cut back to increase flow. Material: LDPE with PP screw closure stem and draw tube. Color: Green. Closure size: 28mm. Capacity: 500mL. 6/Pack; 24/Case. Nalgene® #: 2422-4500.