Inspired by the Celtic good luck charm, this four-leaf clover design will certainly enhance any property. The CA817 Clover Leaf Perforated Grille pattern uses intricate clovers to create optimal airflow for your building. Popular in a variety of builds, this pattern is a preferred choice for commercial, institutional, high-end residential and historic renovation projects. The CA817 is available in three square sizes including 1/4” x 1” with 43 percent free air, 1/4” x 1/2” with 42 percent free air and 3/16” x 1/2” with 36 percent free air. Further customize your perforated grille by selecting one of our materials and finishing options. 

Popular options include: Our Exclusive L-Bead and L45-Bead Frame, Countersunk Mounting Holes, Welded Stiffener Bars or Support Boot, Welded Angles/Clips for Concealed Fastening, Access Door and Beveled Edges, Exact Border Specification, and Pattern Scaling.

Free Air Percentage