LiftMaster Step Key, 5/16"X3/8"X1-1/2" | LIF-310-80051 LIF-VKP1-LM-EO The top slot of this

The top slot of this Parcel Drop Box accepts items up to 13 inches in width by 6 inches in height and can be mounted directly to the floor using the included mounting hardware

For use with various LiftMaster® and Chamberlain® DC Belt and Chain Drive Garage Door Openers

The outside lever/knob is always inoperable

1 - Giuno BT A 50 UL Operator

2" x 102" Parkway Corner Post Doggie Picket Flat Head (White)

LiftMaster Step Key, 5/16"X3/8"X1-1/2" | LIF-310-80051 LIF-VKP1-LM-EO The top slot of thisLiftMaster Step Key, 5 16"X3 8"X1 1 2" LIF 310 80051 This is a replacement Step Key (5 16"x3 8"x1 1 2") for use with various Commercial Door Operators. Also known as: 31080051 Genuine LiftMaster replacement part.