PI391 | Extension Ring 4x4x1-1/2in | DiversiTech Pressure Regulator Setting_-0.02IN and other large-scale commercial spaces

and other large-scale commercial spaces

Engineered with NPT threads for secure connections

With its compact design and powerful motor

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Its normally closed (N/C) configuration allows for precise fluid flow regulation

PI391 | Extension Ring 4x4x1-1/2in | DiversiTech Pressure Regulator Setting_-0.02IN and other large-scale commercial spacesDiversitech's Extension Ring (PI391) is a 4x4x1 1 2 inch extension for compatible HVAC systems. This extension ring offers a sturdy construction and efficient performance, making it a reliable addition to industrial and commercial applications. With its compact design, it can easily fit into tight spaces, ensuring seamless integration with existing equipment. The Devco PI391 Extension Rings, 4 in. length, 4 in. width, 1 1 2 in. depth, 21. 0 cubic in.