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S505AL Monitored Small Profile Resistive Edge pressure-sensitive edge stops and/or reverses gate when obstructed
PMX 500 IC/B
Battery bracket not included
Chamberlain and Sears Craftsman garage door openers (315Mhz Frequency only)
CPS-RPEN4) or a monitored edge (OES) to a non-monitored operator
LiftMaster 041C4470 ATS CSO Chain Drive Gear & Sprocket Kit S505AL Monitored Small Profile ResistiveLiftMaster 041C4470 ATS CSO Chain Drive Gear & Sprocket Kit Product Features This Gear and Dual Sprocket kit is a quick fix when your nylon gear strips or bearings go bad. How you know this is your problem; 1. The motor runs but the chain does not move. 2. When the cover is removed white powder like snow fills the bottom of the cover. 3. Or gray dust is piled on top of the gear indicating bearing failure. Product Description For LiftMaster ATS Chain
