HEL-COR is Contech's standard corrugated metal pipe (CMP) used in drainage, culverts, storm sewers, canals, and stormwater detention and infiltration applications. HEL-COR is available in a large variety of materials, coatings, and sizes to meet site specific needs, and HEL-COR's continuous locked seams and annular corrugated ends allow for a variety of standard couplings to be used. | HEL-COR Round Culvert | Size 10'L x 10"D