The 3/8 x 1/4 PP Push-In Tube DOT Reducing Union is a straight inline fitting designed to securely connect DOT-approved tubing to DOT-approved tubing. This reducing union allows for a seamless transition between different tube sizes, ensuring a leak-proof, durable, and vibration-resistant connection. It is commonly used in air brake systems, pneumatic applications, and industrial fluid transfer. Specification Details TYPE Reducing Union DESIGN Reducing union design, provides a smooth transition between different tube sizes MATERIAL Brass for durable, corrosion-resistant, and widely used in air brake and pneumatic applications WEIGHT (LBS) 0.075 CONNECTION SIZE 1 3/8" CONNECTION SIZE 2 1/4" CONNECTION TYPE Push-to-Connect|Push-to-Connect CONNECTION TYPE 1 Push-to-Connect CONNECTION TYPE 2 Push-to-Connect FITTING TYPE Union PRESSURE RATING 150 psi TEMPERATURE RATING -40 to 200 deg F STANDARD APPROVALS DOT FMVSS 571.106|SAE J1131 APPLICATIONS Ideal for DOT Air Brake Systems, Pneumatic Systems, Heavy Equipment & Machinery, Industrial Fluid & Gas Transfer BRAND Midland Industries