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Bloomington
- Insulation proof - All openings secured preventing sprayed-in insulation from entering regulator and causing problems
- Obstruction proof - All moving parts protected from external obstructions
- Gasket material minimizes air bypass when blade is closed
- Common plastic bearing stabilizes damper blade
- Hex shaft allows secure blade fastening
- Counter-weighted blade allows installation in any orientation
- Gap between regulator and damper shell allows damper to be fully insulated
- No loose parts - Damper ships completely assembled