Air Lock - HDPE Duct Push Fit Coupler are used to join 2 HDPE Duct. With Push - Fit mechanism it is easy to install coupler without use of any additional tool. With high pressure sustainability, it is perfectly suitable to perform Duct Integrity Test (DIT) with pressure upto 12kg Features UV Stabilized Anti Corrosion Material Resistant to most of chemical Prevent Air and Water leakage Push - Fit mechanism make it easier and faster to install Size