Microduct connectors are making connections and sealing between microducts easily without any tools, The transparent body design affords great control when connecting and sealing microduct, and enables easy visual inspection of the fiber cable in the microduct couplers. Multiple diameter available from 3mm to 25mm and available for outdoor HDPE microduct and indoor LSZH microducts, inclkuding microduct straight connector, microduct end cap, microduct reducer, gas block connector, simplex duct plug, expand duct plug and other types for different ducts.