Parallel Volume Damper Low Leak 3000PLL-54X48 Residential Registers & Grilles Allows for 4-way airflow

Allows for 4-way airflow

inner dimension and outer dimension sizes available * Tamper proof screws * Standard Color

Round Bowtie Damper

Nylon bushings for easy adjustment and quiet setting of blades running parallel to shortest dimension

Parallel Volume Damper Low Leak 3000PLL-54X48 Residential Registers & Grilles Allows for 4-way airflowh3. 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