DualGo has 2 hose tube arms connected to the filter unit. This hose tube arm, an EconomyArm, is the economical option recommended for light welding activities. The differencefrom DualGoPlus are the extraction arms connected to the filter unit. The length of the arm can vary from 2 to 4 meters. The DualGo range is recommended when 2 coils of solid welding wire are consumed, or 15 kg of welding electrodes per month. Both units meet the requirements regarding welding fume separation efficiency class W3, according to ISO standard 15012-1:2013.