Parallel Volume Damper Low Leak 3000PLL-46X30 Step Down Ceiling Diffuser 2" ADC compliant round collar

2" ADC compliant round collar with bead for ease of installation

Perforated face grille

Performance Data With Opposed Blade Damper

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 18" Duct Opening (front blades parallel to shortest dimension)

REVIT FILES Spiral Diffuser Radius Flush Mount Diffuser Single Deflection

Parallel Volume Damper Low Leak 3000PLL-46X30 Step Down Ceiling Diffuser 2" ADC compliant round collarh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3. Options * 3000 PLL Low Leak Air Control