OMNI BLOCK. This product is a concrete masonry unit designed to accommodate specially shaped insulating inserts of expanded polystyrene. As a result, the block can be used to create structural, stand-alone exterior walls that require no additional insulation, interior furring, or drywall framing. The block is manufactured in a low-embodied energy process using locally quarried raw materials, and the EPS inserts are made of nontoxic, chemically stable, CFC- and VOC-free recycled refinery waste. All block and insert materials are also 100% recyclable with zero formaldehyde content. Omni Block qualifies for LEED credits. 877.711.6664.