Devco PI391 Electrical Utility Box Extension Ring 4 inches voomi_id_35489 This unloader valve is crafted

This unloader valve is crafted to withstand rigorous use

Agency Compliance: C-Tick

Constructed from robust die-cast zinc for enhanced durability

Differential: 20 deg F

Devco PI391 Electrical Utility Box Extension Ring 4 inches voomi_id_35489 This unloader valve is craftedProduct Description The Devco PI391 is an Electrical Utility Box Extension Ring designed for various electrical applications. This extension ring measures four inches in length and two hundred one point seven inches in width, making it suitable for standard utility box installations. With a depth of one and one half inches, it provides ample capacity of twenty one cubic inches for wiring and connection purposes. Knockout sizes: three fourths inches