This is a direct replacement for all ES-1600 arms* starting in 2016. The ES-1600 arm is recommended for gates that are up to 14 feet in length or 800 lbs.
*The ES-1600 and the ES-1600L are two different sizes for separate applications. Please see the ES-1600L replacement arm if you are replacing your 1600L.
Manual: Estate Swing E-S1600/1600 Gate Opener Instruction Manual
QB ID: TMT330.370