Quam ERD8U

Constructed of drawn steel, these backboxes have a bump to add acoustical rigidity and a fire retardant acoustic damping device to reduce standing waves and mechanical resonances. They are approximately half the weight of welded backboxes. They can be used with SSB-2, SSB-3, SB-4, SSB-6 and SSB-7 support devices.

Features:

• UL listed, category UUMW suitable for use in ceiling plenums that are partof air handling system
• SSB-2 Tile Support Bridge (sold separately) is a UL approved accessorywhen used with ERD8 series
• Designed to nest, eliminating bulky cartons for shipping and job sitestorage space requirements
• Baffle mounting J-nuts are securely captured in mounting flangeeliminating loss during transit & installation
• Four slots at 90° provide quick attachment to SSB-2 tile bridge withoutneed for additional hardware