41D4671 Limit Switch Assembly for Screw Drive Openers Works for the following models only LiftMaster Models: 1000SD, 1000SDR, 2000SD, 2000SDR 3130, 3240, 3130M, 3240M 2110, 2220, 3110, 3220 Chamberlain Models: 4600, 4620, 4640, 9902 PD432D,...
41D4671 Limit Switch Assembly for Screw Drive Openers