2" 3 Hour Vertical Mount Fire Door 2561-36X20 past 12 months Standard Features * 1" rim

Standard Features * 1" rim size (2" larger than nominal duct size) * 14 gauge steel * 1305: 1/2" lattice opening

115T Series Engineering/Performance Data

Rust-resistant pre-coat with durable powder finish

Fixed bars with 0° deflection

Designed for return applications and as a vented access door to equipment

2" 3 Hour Vertical Mount Fire Door 2561-36X20 past 12 months Standard Features * 1" rimh3. Standard Features * 2561 Square or rectangular fire door for vertical mount only. Maximum dimension 48w, 49h. For damper free area chart A click here * 2563 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. For damper free area chart B click here * 2565 Round fire door for vertical mount only. Available 4" thru 40" round. * UL and California State Fire Marshall approved * 2" thinline frame *