O W N E R ’ S M A N U A L
O W N E R ’ S M A N U A L
M O D E L
MODEL
LM21XP
LM21XP
EXTENDED PERFORMANCE RELEASE DEVICE
EXTENDED PERFORMANCE RELEASE DEVICE
The Chamberlain Group, Inc.
300 Windsor Dr.
Oak Brook, IL 60523
www.liftmaster.com
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