The newly developed ABS/AES Block is a revolutionary, light weight and cost effective solution for roof top pipe supports. The unique design makes it light enough to easily carry to the roof but strong enough to support extremely heavy loads. The blocks can be cut to any length to fit any job and to cut down on waste. This versatile block features different channel sizes on each side of the support. This dual channel configuration accepts both standard pipe clamps and 3/8 inch bolts. It is made from 30% recycled material and is 100% recyclable, making it an environmentally green choice!!!