Specifications include, but are not limited to: Ward 130 Damper # 28071 Electric: Remove old damper assembly (and actuator motor) and install new complete assembly from factory with actuator mounted. Test the damper per code. Ward 132 Damper # 28074, 28075, 28076 Electric: Remove old damper assembly (and actuator motor) and install new complete assembly from factory with actuator mounted. Test the damper per code. Ward 134 Damper # 28079 Electric: Remove old damper assembly (and actuator motor) and install new complete assembly from factory with actuator mounted. Test the damper per code. Ward 138 Damper # 28080 Electric: Remove old damper assembly (and actuator motor) and install new complete assembly from factory with actuator mounted. Test the damper per code. Ward 140 Damper # 28081 Electric: Remove old damper assembly (and actuator motor) and install new complete assembly from factory with actuator mounted. Test the damper per code.