LiftMaster 041B0873 Safety Sensor Sunblocker Shields If the motor on your

If the motor on your garage door opener is running

and (1) ring

you will receive a eighteen foot kit of 1 7/8" aluminum retainer in four sections at four feet six inches

as well as smaller commercial door and gate applications

LiftMaster 041B0873 Safety Sensor Sunblocker Shields If the motor on yourLiftmaster 041B0873 Safety Sensor Sun Shields LiftMaster, Chamberlain, Sears Craftsman, and Chamberlain brand garage door opener safety sensor sun shields. These cardboard safety sensor sun shields are used to prevent sunlight from shining into sensor causing accidental reversal of garage door. ONLY compatible with 41A5266 3 safety sensor brackets. Includes one pair. 041B0873 is a Safety Sensor Sun blocker Kit Instructions