This is a direct replacement for all ES-1600L arms* starting in 2016. The ES-1600L arm is recommended for gates that are longer that 14 feet and up to 20 feet in length or 1000 lbs.
*The ES-1600 and the ES-1600L are two different sizes for separate applications. Please see the ES-1600 replacement arm if you are replacing your 1600.
Manual: Estate Swing E-S 1600/1602 Gate Opener Instruction Manual
QB ID: TMT330L.540