2" 3 Hour Vertical Mount Fire Door 2561-20X14

2" 3 Hour Vertical Mount Fire Door 2561-20X14h3. 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 *

Square collar designed for 22" x 22" duct

AA-HVL Series Engineering/Performance Data

Maintains horizontal airflow pattern

904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 12" Duct Opening (front blades parallel to shortest dimension)

RD Series Engineering/Performance Data

Standard Features *Surface mount return air grille * 45 fixed blades parallel to shortest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 936 O - recessed screwdriver operated opposed blade damper * No Labor Collar (square sizes only) * 900 T - T-Bar mount * 905 HD - reinforced construction * 905 IS - insect screen * 1335-1338 Series - stainless steel version * Tamper proof screws

Double deflection radius mount spiral pipe grille with adjustable blades

Allows for 2-way airflow

Narrow ceiling grid dimples for 9/16" T-Rails

3 cone steel diffuser with hinged core for easy duct access

Adjustable steel roll formed blades oriented for 1 or 2 way airflow pattern

* UL and California State Fire Marshall approved * 4-1/4" standard frame style * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3