243x2''x30'' bracket Allows your Customers to control

Allows your Customers to control their garage door opener and home lighting using their smartphone or computer (when paired with the LiftMaster 828LM Internet Gateway)

Spring Measurements: Spring measurements will only be conducted using the spring(s) provided by the customer or by specifying the size of the spring(s) accurately

Accuracy of Measurements: If measurements provided by the customer are found to be incorrect

For use with various LiftMaster DC Motor Garage Door Openers and Commercial Door Operator for Sectional Doors like the LJ8900W and LJ8950W featuring Backup Battery Systems

or even loss of life

243x2''x30'' bracket Allows your Customers to controlTEMPERED TORSION SPRINGS OVERHEAD GARAGE DOORS ONLY Including Stationary Cone + Winding Cone Ready to be installed All Springs are Inspected Ships Same Day (Mon Fri) Not including Winding Bars (For your safety highly recommend) IPPT CHART QTY Wire Size ID Length IPPT Cycle 1 207 2 20 26. 71 10,000 1 207 2 22 24. 16 10,000 1 207 2 28 18. 78 10,000 1 218 2 23 30. 28 10,000 1 218 2 26 26. 63 10,000 1 218 2 29 23. 77 10,000 1 225 2 26 30. 85 10,000 1 225