Nokink is used when installing air conditioning units when connecting either the evaporator or condenser unit and is ideal for dmss especially when connecting the evaporator unit. It allows the contractor to easily install the refrigerant lines coming out of the wall to the dmss evaporator. It prevent refrigerant line from kinking and allows for an easier installation saving time and labor costs. Each nokink has a 3" long copper end for easier flaring. It has an operating pressure rating of up to 800Psi.