LiftMaster SUB-180 gate opening arm for use with LiftMaster SUB300M and SUB324M underground gate openers to open gates 180 degrees. 

Please Note: The 180° gearing does NOT include stopping devices. It is however extremely important that floor stops are solidly installed for the gate. 

Features:

• Opens gate to 180°
• Heavy duty chain mechanism
• Built-in manual release with key
• Bearing supported
• For weld mounting
• Locks are required if used on cladded gates

What’s Included:

• 1 x 180° Drive Arm
• 1 x 180° Motor-wheel Chain
• 1 x Bolt, Motor Arm
• 1 x Nut, Motor Arm
• 1 x Interlock Deactivating Key
• 1 x Bearing Ball
• 1 x Chain
• 1 x Chain Joint