The Atkore PVC Conduit (vendor part 8030010, Millennium part 524088) is 3 in x 10 ft Schedule 80 with a belled end, giving crews a heavier-wall duct option for protecting fiber or copper cable in higher-stress underground and riser applications than Schedule 40 provides. The belled end joins to the next section without a separate coupling, speeding up trenching and conduit runs. Underground construction crews use Schedule 80 where mechanical protection matters more than cost, such as roadway crossings and risers. Millennium also stocks the same conduit in Schedule 40 and additional diameters for mixed-duty runs.