The Garvin Industries 4" Square Plenum Extension Ring, 2-1/8" Deep, is a robust and versatile solution designed for extending electrical box capacity in plenum spaces. Crafted from durable stainless steel, this drawn extension ring features conduit knockouts for flexible wiring options and is ideal for commercial, industrial, or residential installations where plenum rating is required.

Key Features and Benefits

• Constructed from corrosion-resistant stainless steel for longevity
• 2-1/8" deep design increases box capacity for additional wiring
• Drawn construction ensures a seamless, sturdy build
• Includes conduit knockouts for versatile conduit entry
• Compatible with 4" square electrical boxes
• Order 53C1-VT plenum sealing ring separately for a complete plenum-rated assembly

Specifications

• Size: 4" square
• Depth: 2-1/8"
• Material: Stainless Steel
• Type: Drawn extension ring with conduit KO's

Common Uses

Perfect for extending electrical box capacity in plenum ceilings and walls in commercial, industrial, and residential buildings.