BSVSW_Q1N: Steel Thermal Link Quad Door SafeMAX Smoke Vent
• Steel
• Thermal Link

 

BSVSW_Q1_: Steel Thermal Link/Electrical Quad Door SafeMAX Smoke Vent
• Steel
• Thermal Link & Electrical

 

BSVSA_Q1N: Aluminum Thermal Link Quad Door SafeMAX Smoke Vent
• Aluminum
• Thermal Link

 

BSVSA_Q1_: Aluminum Thermal Link/Electrical Quad Door SafeMAX Smoke Vent

• Aluminum
• Thermal Link & Electrical

 

BSVSB_Q1N: Aluminum & Steel Thermal Link Quad Door SafeMAX Smoke Vent

• Steel Curb, Aluminum Cover
• Thermal Link

 

BSVSB_Q1_: Aluminum & Steel Thermal Link/Electrical Quad Door SafeMAX Smoke Vent

• Steel Curb, Aluminum Cover
• Thermal Link & Electrical