1 - Garage Door Torsion Spring .218 X 2" X 27 - OT PAIR - LHW - RHW:RIGHT-HAND WIND (RHW) The model 841LM is only

The model 841LM is only compatible with LiftMaster garage door openers with the security shield

Also known as 41B5424

Liftmaster:  371LM

400-8 Residential Garage Door Standard Lift Cable Drum (Pair)

1 - Garage Door Torsion Spring .218 X 2" X 27 - OT PAIR - LHW - RHW:RIGHT-HAND WIND (RHW) The model 841LM is onlyDescription These are the highest quality Garage Door Oil Tempered Torsion Springs on the market. All springs come complete with both a winding cone and a stationary cone which makes for an easy installation. Features Black coated corrosion resistant torsion springs Installation If only one spring has broken, you can expect that the other one will break very soon. That is why we always recommend replacing them in pairs. We offer professional