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Measure garage door torsion springs and ensure they are installed correctly with this specially designed SPR-Ruler from Action Industries. This ruler is marked specifically for garage door spring wires and allows you to determine spring size for replacements and to ensure torsion springs are correctly installed.
SPR-Ruler for Garage Door Torsion Springs
Measure and determine the size of torsion springs for replacements
One end is pressed into the spring for professional measuring
Takes the guesswork out of spring measuring
Specially marked for garage door springs to simplify measuring