Installation Sites & Depth Recommendations This chart is a general guide only. Your specific applications may require slightly different sizes. In Stock 990mm and 1.49m other sizes can be ordered on request. Installation Sites & Depth Recommendations Application Pg. # Biobarrier Recommended Depth Depth (mm) 30mm 500mm 740mm 990mm 1490mm Bunkers 12 ⚫ ⚫ Canals … Continue reading Installation Sites & Depth Recommendations