Peerless-AV Multi-Display Ceiling Adaptor for 4" to 7" Wide x up to 1.5" Thick I-Beam StructuresOverview Specifications The Heavy Duty I Beam Clamp with Decoupler is designed to anchor a Peerless Multi Display System to 4" to 7" wide overhead I beam. The stub fitting is compatible with Peerless (ADD model) Adjustable Length Extension Columns. The built in decoupler absorbs structural vibrations. General Information Manufacturer Peerless Industries, Inc Manufacturer Part Number DCT900 Brand Name Peerless AV Product Name Ceiling Adaptors for Truss