Orion offers a complete line of wire mesh, plastic, louvered, push-on, metal, and filtered fan guards, providing users multiple options for specific apps. Wire mesh guards are available for fan sizes from 60 to 172 mm and metal guards capable of withstanding 200 lbs. of separation force come in sizes from 25 to 280 mm. Plastic guards fit 40 mm to 172 mm fans and push-on guards are available for 60, 80, 92, 120 and 127 mm. Plastic louvered versions are available for 120-, 172-, and 254-mm fans. ORION FANS, Dallas, TX. (800) 323-2439.