306 x 3-3/4 Commercial Garage Door Torsion Spring - Red (Left Side)

TORSION SPRING DIMENSION: 0.306 wire size x 3-3/4” inside dimension x 34” length Garage Door Torsion Spring. HEAVY DUTY SPRINGS: Crafted from heat-treated spring steel with aluminum cones for durability. Electrophoretic coating ensures corrosion resistance and wear protection. Salt spray tested for 400+ hours, 20,000+ cycles. Long-lasting and no lubrication needed for clean install. DURABLE PREMIUM MATERIALS: Constructed from the highest-grade ASTM 229 Class II Carbon Steel, our torsion springs offer exceptional strength and longevity, establishing them as the epitome of reliability. EASY INSTALLATION: Use our high quality garage door torsion springs kit to fix and replace old broken garage door springs. Having the experience of installing torsion springs can save you money and time, but only install if you feel comfortable doing so, or leave for a professional if needed. 5-YEAR WARRANTY: Supported by a generous 5-YEAR WARRANTY from the purchase date, our Garage Door Springs reflect our commitment to the quality and performance of your investment. This extended warranty underscores our dedication to your lasting satisfaction.