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Certainly not your grandad’s bulkhead. The ClamDoor has been setting the standard for more than a decade. Born and raised in RI, these weathertight fiberglass units are finished in a smooth grey gel coat that is also agreeable to painting. We’ve replaced our fair share of Old Ironsides with these attractive, secure and smooth operating units. Backed by a 10 year warranty, the ClamDoor is a no brainer.