... the outlet silencer 4 where it exits the side channel blower.Features:1. Beautiful surface 2. Easy installation 3. Low noise ... in designing,manufacture and after-service with producing side channel blower in china.In 2010,establishing a branch in wuxi jiangsu ... the futureProduction Line: 2RB&4RB,High Pressure Air Blower,screw compressor,air dryer,turbo air pump,mini silent oil-free vacxuum pump