Opaque cylindrical bottles made of dark grey polyethylene, designed for the storage of light sensitive liquids or solid substances. Include a black screw cap and an insert plug for a positive leakproof seal.
Ribbed caps for a better handling.
Heavy duty bottles, with sloping shoulders for easy pouring.
Tagging points on neck and cap for a tamper proof closure. Body and cap with holes for
sealing or labeling.