S90HOBD or S90VOBD and ALS90HOBD or ALS90VOBD — Stationary-Bar Return Grille with Opposed-Blade Damper, Steel or Aluminum

• Blades are spaced on 3/4” centers and set at a 35° angle to restrict vision.
• Opposed-blade damper (OBD) is easily operated with a screwdriver through face. 
• Extremely shallow depth allows damper to be used in shallow stackheads. Fixed bar blades.
• Steel or Aluminum.
• Countersunk mounting holes. Mullion spacing not to exceed 8”. 
• Bright White finish standard.

H means horizontal blades; V means vertical blades