Acudor ED universal flush access doors in different sizes and styles..This category contains Acudor Fire Rated Access Doors. The Acudor FB Access Door is approved by Underwriters Laboratories UL for hours “B” label in walls .Acudor Products For affordable quality, choose Acudor. Access doors for any application from masonry to drywall to plaster. Flush non rated, fire rated, recessed .Products. As the largest commercial HVAC rep in the Southeast, Tom Barrow Company provides a wide range of HVAC products from offices in Georgia, Florida and Tennessee..