Derale High Performance Flex Fan 18 Inch Blue Blade Black Hub

Derale 19918 This 18" high performance standard rotation flex fan is an attractive solution to limited space applications. Featuring 6 blue anodized aluminum blades and a black powder coated steel hub, it is rated for engine speeds up to 8,000 rpm.
Features: Blue anodized aluminum fan blades. Black powder coated hub. Rated up to 8,000 RPM. 18" standard rotation flex fan design.
Specifications: Diameter: 18-1/4", Flange bolt spacing: 1-3/4" - 2-1/4", Depth: 1-1/4", Mounting surface to front: 1/4", Mounting surface to rear: 1", Blade pitch: 50, Rotation: Standard (clockwise), Hub construction: Powder coated black steel, Blade construction: Anodized blue aluminum.