This guide will assist you in selecting lead blocker positions.

Blockers are supplied 1" x 3" in any of the eight positions indicated. When ordering, please indicate the position required by number.

The illustration below is oriented with the narrow dimension at the top and hinges at the left. The door is on the left.

The position number for most cassettes is number 1 (close to the hinge).

Screens can also be ordered with I.D. window cutout for I.D. camera systems. Be sure to check window location before specifying cutout location.