DLDF80891 Diffuser $15.75 Quantity discounts available QuantityPrice Quantity -+ Add to Cart Details SPECIFICATIONS:Diameter: 3 5/8" (92.075mm)Mounting Diameter: Details Back DetailsSPECIFICATIONS:Diameter:3 5/8" (92.075mm)Mounting Diameter:3 5/16" (84.582mm)