The only sound rated access panel in the the industry! This WB STC 650 precision-flush sound rated access door is for wall and ceiling installation
where a sound rated access door / panel is required. The WB STC 650 sound rated access panel is considered the best and only sound rated access
door on the market. Specified by architects word wide, this sound rated access panel is independently tested in accordance with ASTM: E1332, ASTM:
E90, and ASTM: E413 with a sound rating of STC 64 with proper installation. This sound rated access door is perfect for areas where sound needs
to be eliminated such as multi-family buildings, schools, hospitals, apartments, and even residential use. The WB STC 650 sound rated access panel
is available in all the popular sizes such as 12x12, 24x24 and 36x36; however, custom sizes are available upon request. Manufactured for The Williams
Brothers Corporation of America. MADE IN USA.