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