Grease Collector Box, Fits Square Base Size Not Applicable, Compatible Grainger Part Number All Dayton Centrifugal Upblast Exhaust Ventilators, Material Plastic, Includes (2) 1/4 in x 3/4 in Flat Washer, (2) 1/4 in x 3/4 in Sheet Metal Screw, Mounting Hardware, For Fan Type Upblast Fans, For Fan Mounting Type Roof Mount, Container Capacity 1 gal, Standards AMCA, NFPA 96, UL 762, Compatible Manufacturer Model Number C-Series Product, For Use With Dayton Upblast Roof Ventilators Dayton. This item has been restricted from sale in the following state (s): []