Lima 1530 Series insulated step-down ceiling diffusers.

• Provides high air volume delivery in a four-way air diffusion pattern
• Three-cone design, fixed core, optional damper control access (damper ordered separately)
• Molded fiberglass back meets or exceeds the following: 
  Test and rating reports available upon written request
  • ASTM E84 Flame and Smoke Test
  • UL181 Erosion and Impact Test
  • "R" value of 6
  • RR7811 Approval for Los Angeles
• Collar sizes available: 6", 8", 10", 12", 14"
• All-steel construction. Formed steel back panel
• Bright White finish standard