High-density polyethylene (HDPE) disposal cans provide superior chemical resistance and leak protection. Spring-loaded sealed cap, normally closed, automatically vents between 3 and 5 psi (0.2 and 0.35 bar). Stainless steel handle and hardware with latch-catch system hold the cap in the open position for easy filling and pouring. Large-mouth opening features a built-in stainless steel flame arrester to guard against outside ignition. A current-carrying, patented carbon insert embedded in the container allows for proper grounding. The broad-base design provides stability and resists accidental tip over.