Description: Garage Door Torsion Springs 7-8 Feet High Door (250x2x30)

Cycles: All Springs rated for an above industry standard, up to 70,000 cycles. 

Material: Fabricated with high carbon ASTM 229 Class II Oil-Tempered Wire.

Execution Factors: Spring Rate - Maximum deflection - Maximum load - Wind specifications

Cone Type: Springs come with winding and stationary cones installed and are stenciled and color coded for easy identification 

IPPT: 44.4
Replacement spring can also be 250-1.75-33 IPPT (45.23)