The Garvin Industries 4 Square Chicago Plenum Air Tight Extension Ring is designed for demanding electrical installations where air-tightness and plenum rating are required. This 2-1/8 inch deep extension ring features both 1/2 inch and 3/4 inch knockouts, providing flexibility for various conduit sizes and configurations.

Key Features and Benefits

• Ensures air-tight performance for plenum-rated spaces
• 2-1/8 inch depth accommodates additional wiring and devices
• Multiple 1/2 inch and 3/4 inch knockouts for versatile conduit entry
• Durable construction for long-lasting reliability
• Easy installation in commercial and industrial settings

Specifications

• Depth: 2-1/8 inches
• Knockouts: 1/2 inch & 3/4 inch
• Type: Chicago Plenum Air Tight Extension Ring
• Shape: 4 Square

Common Uses

Ideal for use in commercial, industrial, and residential plenum spaces where air-tight electrical box extensions are required, especially in Chicago code jurisdictions.