Specifications
| MANUFACTURER | MODEL | DESCRIPTION | MAX. DAMPER SQ. FT. | VOLTAGE | |
| WITH SEALS | NO SEALS | ||||
| CHAIN OPERATOR | CHAINOP | MANUAL OPEN/MANUAL CLOSE | N.A. | N.A. | N.A. |
| LOCKING QUADRANT | 2V100 | MANUAL OPEN / MANUAL CLOSE | N.A. | N.A. | N.A. |
| MULTI PRODUCTS | 2W100-115/230 | POWER OPEN SPRING RETURN | 3.0 | 6 | 115/230V AC |
| 2W104 | POWER OPEN SPRING RETURN | 3.0 | 6 | 24V AC | |