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  • Chief THINSTALL Large In-Wall Installation Box for Swing Arms

Chief THINSTALL Large In-Wall Installation Box for Swing Arms


Usually ships in 1-2 days.

NOTE: This is a heavy/dimensional part; it is not eligible for free shipping.


WARNING: Cancer and Reproductive Harm –


Zero Depth With Maintained Arm Mobility

The Chief In-Wall Accessory Box for TS525TU is designed to take an already ultra-thin THINSTALL swing arm to zero depth, creating a flush appearance while still allowing great mobility of the swing arm. The box features a large conduit and gang knock-outs for easy cable integration and compatibility with metal single-gang boxes. It also comes with a black trim kit to create a clean installation.

  • Compatible with TS525TU and TS325TU
  • Large conduit and gang knock-outs for easier cable integration
  • Compatible with metal single gang boxes
  • Includes black trim kit to create clean appearance

IMPORTANT NOTE: Chief Mounts products are not available to ship outside the U.S. Please contact Chief Mounts directly for international orders.

About Chief Manufacturing

Chief Manufacturing designs state-of-the-art mount and rack solutions that complement the technology they support. Chief made its mark in the industry by producing the original projector mount roll, pitch and yaw adjustments in 1978, making registration quick and easy. Today, Chief continues to break new ground with new products and unique, patented features that focus on ease of installation and flexibility for the professional installer.


  • Color: Black
  • Equipment Weight Capacity: 125 pounds (56.7 kg)
  • Dimensions: 21.75(H) x 34(W) x 4.21(D) inches (553mm x 864mm x 107mm)
  • Typical Screen Sizes: 30 - 58 inches