National Hardware N305-474 Left Wind Torsion Spring, 1-3/4" x 20"

Highlights:

• Size: 1-3/4" x 20"
• Finish: Steel
• Material: Steel
• Garage door spring for doors weighing up to 106 lb. of lift for a 6' 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