Description: Garage Door Torsion Springs 7-8 Feet High Door (243 x 1.75 x 31)

Cycles: All Springs rated for an above industry standard, minimum lifecycle of 16,000 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: 42.58 
Replacement spring can also be 243-2-28 IPPT (31)