Derale High Performance Flex Fan 18 Inch Red Blade Chrome Hub

Derale 19418 This 18" high performance standard rotation flex fan is an attractive solution to limited space applications. Featuring 6 red anodized aluminum blades and a polished and chrome plated steel hub, it is rated for engine speeds up to 8,000 rpm.
Features: Red anodized aluminum fan blades. Chrome plated 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: Chrome plated steel, Blade construction: Anodized red aluminum.