Bio FOG Block is a slow-release, solid biological treatment block formulated for the proactive breakdown and prevention of fat, oil, and grease (FOG) accumulations in drains, grease traps, and interceptors. The product utilizes a high concentration of specially selected, naturally occurring bacteria to biologically digest FOG, reducing buildup, minimizing odours, and helping to maintain free-flowing drainage systems. Contains 18 billion CFU/g.