McMaster 5787K38 Push to Connect Tube Fitting for Air and Water, Elbow, for 4 mm Tube OD × 1 8 Male Universal Thread G2753283 S Extended Neck Yes Primary S Extended Neck Yes Primary Material Application All Materials Coolant Fed Non Coolant Through Spiral Direction Neutral Helix Angle 0 Degrees Connection Location Lower Gauge Application Demanding Industries Such as Chemical Shape 90° Elbow Type Adapter For Use With Air Tube Connection Style Push to Connect Push to Connect Type Standard Tube Connection Gender Female O Ring Material Buna N Rubber For Tube OD 4 mm Pipe Connection Style Threaded Pipe Connection Gender Male Thread Type Universal For Tube Material Nylon Plastic