(RBD) Round Back Draft Damper

RBD spec sheet (PDF)

The RBD is our round back draft damper designed to fit inside the pipe.

The welded 2″ deep frame is undersized 1/4″ for easy installation. The .025 aluminum
butterfly style blades are attached to the damper using 1/4″ plated rod and bronze bushings.

Attached to the blades is a spring closure that seals the blade up tightly against a neoprene gasket.