4 1/4" Vertical Mount Fire Damper 2633-8X6
4 1/4" Vertical Mount Fire Damper 2633-8X8
4" 3 Hour Vertical Mount Fire Door 2661-10X10
4" 3 Hour Vertical Mount Fire Door 2661-12X10
4" 3 Hour Vertical Mount Fire Door 2661-12X12
4" 3 Hour Vertical Mount Fire Door 2661-14X10
4" 3 Hour Vertical Mount Fire Door 2661-14X14
4" 3 Hour Vertical Mount Fire Door 2661-16X16
4" 3 Hour Vertical Mount Fire Door 2661-18X18
4" 3 Hour Vertical Mount Fire Door 2661-20X14
4" 3 Hour Vertical Mount Fire Door 2661-20X16
4" 3 Hour Vertical Mount Fire Door 2661-20X18
4" 3 Hour Vertical Mount Fire Door 2661-20X20
4" 3 Hour Vertical Mount Fire Door 2661-22X22
4" 3 Hour Vertical Mount Fire Door 2661-24X14
4" 3 Hour Vertical Mount Fire Door 2661-24X16
4" 3 Hour Vertical Mount Fire Door 2661-24X18
4" 3 Hour Vertical Mount Fire Door 2661-24X20
4" 3 Hour Vertical Mount Fire Door 2661-24X22
4" 3 Hour Vertical Mount Fire Door 2661-24X24
4" 3 Hour Vertical Mount Fire Door 2661-26X26
4" 3 Hour Vertical Mount Fire Door 2661-28X28
4" 3 Hour Vertical Mount Fire Door 2661-30X14
4" 3 Hour Vertical Mount Fire Door 2661-30X16
