Parallel Volume Damper Low Leak 3000PLL-70X64 Commercial T-Bar Modular Core Diffuser with

T-Bar Modular Core Diffuser with Round Collar 18-20

Center margins are mounted on the backside of the grille for a streamlined continuous look

Nylon bushings on adj

Rust resistant pre-coat with durable powder finish

Parallel Volume Damper Low Leak 3000PLL-70X64 Commercial T-Bar Modular Core Diffuser withh3. 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