The 0.840 CPLG .156X3-1/2 P27 A/C from Dresser Industries is a versatile coupling designed for air conditioning and refrigeration applications. Measuring 0.840" in diameter and 3-1/2" in length, this coupling is made from high-quality materials that ensure durability and performance. The P27 designation indicates its specific design and material properties, making it suitable for a variety of piping systems. This coupling provides a secure fit, preventing leaks and ensuring efficient fluid transfer. Ideal for HVAC systems, it meets industry standards for reliability and safety.