Comparison : Item # 522953, Hose clamp, heavy-duty conveying hose (2 required)
Item # 520551, Hose clamp, dust hose (2 required)
Item # 516101, Dust hose, 6" x 11'
Item # 551560, Screw,1/4" x 20, self drill (4 required)
Item # 761801, Adapter, 6" O.D x 10" I.D., DCM-200 & CDC-6