Black Finish. 0.243 Wire Diameter. 2-Inch Inside Diameter. Garage door spring for doors weighing between 240 lb. to 250 lb. A pair of each spring should be used during installation. 122 lb. of lift for a 7′ high door. Lift numbers are based on 4″ diameter drums. Left and right wind versions are made of plain steel, and are reliable and durable. No. N281170: Type: Left Wind Tosion, Length: 32″, Material: Steel, Weight: 240 lbs. to 250 lbs. No. N281188: Type: Right Wind Tosion, Length: 32″, Material: Steel, Weight: 240 lbs. to 250 lbs.
From the Manufacturer
Replaces torsion springs with same wire diameter, inside diameter and length.