XG-6600-BO Model XG-BO-6600 is a single blank off for use with model XG-6600 diffusers. Blank Offs & Light Shields XG-6600-BO XG-6600-LS XG-AFL-BO XG-AFR × Show All Submittals XG-6600-BO – Blank Off Panel, Aluminum XG-6600-LS – Light Shield, Aluminum XG-6600-LSI – Light Shield, Insulated, Aluminum XG-AFL-BO – Blank-Off for Formations, Aluminum XG-AFR – Return Hood Light Shield, Aluminum XG-AFRI – Return Hood Light Shield Insulated, Aluminum Catalogs Diffuser Selection Flow Chart Linear Diffusers and Grilles Product Handbook Other Product Information Finish Options Warranty Warranty Statement for Air Distribution Products