Model: 7 1/2 x 8 -BA Material: Aluminum Alloy Number of Blades: 3 Key benefits - Durable and lightweight aluminum alloy construction supports reliable, long term use - Three blades provide balanced airflow and stable operation - Corrosion resistant finish helps extend blade life in various environments - Precision manufacturing ensures a proper fit and consistent performance with compatible equipment Size and compatibility notes - Model 7 1/2 x 8 -BA specifies the blade configuration and sizing for compatible systems Use scenarios - Replacement blade for compatible industrial fans or blowers that use a 3-blade aluminum blade set in this size - Upgrade component in a small ventilation or cooling system that requires the 7 1/2 x 8 -BA 3-blade configuration - DIY projects needing a strong, lightweight three blade set to optimize airflow