Genie 37857R.S Tensioner Assembly with Pulley This is a versatile remote

This is a versatile remote control that can be used on access control systems

3 expansion board

The CPS-UN4 Commercial Protector System is for use with Medium Duty Logic

Original LiftMaster part

Genie 37857R.S Tensioner Assembly with Pulley This is a versatile remoteGenie replacement tensioner assembly for compatible model garage door openers. Included with Tensioner Assembly: Pulley, Tensioner bracket, carriage pin, pulley bracket, washer, spring, hex nut, screw, pulley guard, and instructions Genuine Genie replacement part Compatible with Genie belt and chain drive models: 1028, 2028, 3020H, 3020H B, 3024, 4024, 3022, 3042, 4022, 4042