- Back Can for PSC-G86TG and SPC-G86TCG - Perforated mounting strap for 8" speakers - Heavy-guage steel construction with undercoating that eliminates any mechanical or acoustical resonance caused by vibration - Rust preventive finish - 4 combination knockouts 1/2" to 3/4" - 4 J clips for mounting of baffles - Can be used for a back box in ceilings or walls - Sold individually