Clean Out Port Kit, Fits Square Base Size 7 in, Compatible Grainger Part Number All Dayton Centrifugal Upblast Exhaust Ventilators, Material Aluminum, Includes Hardware Kit, Removable Plug, For Fan Type Downblast Fans, Upblast Fans, For Fan Mounting Type Roof Mount, Container Capacity Not Applicable, Standards AMCA, NFPA 96, UL 762, Compatible Manufacturer Model Number C-Series Product, For Use With Belt-Drive Exhaust Fan, Centrifugal Upblast Roof Ventilators. This item has been restricted from sale in the following state (s): []