Chief | Legrand AV
Proximity In-Wall Storage Box
Flat Panel TV Installation
Chief In-Wall Storage Box
Recessed in-wall storage boxes for organized cable routing and equipment concealment behind flat panel TVs. Provides space for surge protectors, power conditioners, and excess cable management.
Available Models
PAC525
Small 9" × 14.25" × 3.88"
No flange • 10 lb capacity
PAC525F
Small 10.3" × 15.4" × 3.9"
With flange • Drywall mount
PAC526
Large 14.25" × 14.25" × 3.9"
No flange • 10 lb capacity
PAC526F
Large 14.3" × 14.3" × 3.9"
With flange • Drywall mount
PAC501B
Swing Arm 20" × 30" × 3.85"
Hide swing arm • 30"-71" screens
Key Features
  • UL Listed
  • Organized cable routing
  • Recessed equipment space
  • Large conduit knockouts
  • Black powder coat finish
  • Optional flanges available
  • Optional power kits
  • Drywall mounting capability
  • Clean installation
  • 10 lb weight capacity
Compatible Mounts
Works with Chief PST, PRO, PLP, MSR, MTR, MWH, MWR, PWR, PNR, PDR, Thinstall, and Fusion wall mounts. Flange versions provide aesthetic trimmed appearance and drywall mounting capability.
Mayer Electric Supply
Please return this card to the display after ordering
Chief In-Wall Storage Box Specifications
Complete Model Range
Model Size Dimensions (H×W×D) Flange MSRP
PAC525 Small 9" × 14.25" × 3.88" No $99
PAC525F Small 10.3" × 15.4" × 3.9" Yes —
PAC526 Large 14.25" × 14.25" × 3.9" No $146
PAC526F Large 14.3" × 14.3" × 3.9" Yes $205
PAC501B Swing Arm 20" × 30" × 3.85" No $401
Available Accessories
Power Kits
2, 4, or 6 outlet options
Flange Kits
Black or white finish
Cover Kits
Black or white finish
Lever Lock
Secure storage plates
PAC525 Small Storage Box
Dimensions: 9" H × 14.25" W × 3.88" D
Weight Capacity: 10 lbs
Features: Organized cable routing, surge protector space, compatible with PST, PRO, PLP, MSR, MTR, MWH, MWR, PWR, PNR, PDR, Thinstall, and Fusion mounts
PAC526 Large Storage Box
Dimensions: 14.25" H × 14.25" W × 3.9" D
Weight Capacity: 10 lbs
Features: Larger recessed space, same mount compatibility, optional flange for aesthetic trim and drywall mounting capability
PAC501B Swing Arm Accessory
Dimensions: 20" H × 30" W × 3.85" D
Screen Size: 30"-71" typical
Features: Hides swing arm mount in wall, ultra low profile, compatible with PNRIW, PWRIW, MWRIW swing arms, large conduit knockouts
Features & Benefits
  • UL Listed construction
  • Black powder coat finish
  • Large conduit knockouts
  • Cable routing guides
  • Surge protector space
  • Equipment concealment
  • Flange options available
  • Drywall mounting capability
  • Compatible with metal boxes
  • Multiple power kit options
  • Professional appearance
  • Easy installation
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Mayer Electric Supply
Please return this card to the display after ordering