Tag Archives: replacement grates

Forgotten Trench Drain Systems – ADP Channel Drains

ADP 2" Grates

Every so often an ADP (American Drainage Products) plastic grate is mistaken for NDS Spee-D Channel.   There is a good reason for that.  ADP was a company based out of Columbus, Ohio who carried a product line that overlapped with those offered by NDS (National Diversified Sales).  In 1997, NDS purchased ADP and incorporated its […]

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