Specifications & Technical Details


The SSPERF-S Stainless Steel Perforated Face Ceiling Diffuser with louvered deflectors is an economical solution of providing positive air flow without limiting volume.

The 3/16″ round perforations on 1/4″ staggered centers allow for 51% free area.

Specify: Series S-44 Opposed Blade Damper to make supply register. The S-44 OBD assures even distribution of air across the grille face as well as positive volume control.

Specify: without screwholes for lay-in installation.

Order Size: 22″ x 22″ for 24″ x 24″ lay-in, 46″ x 22″ for 48″ x 24″ lay-in.