𝗵𝗶𝗴𝗵-𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗮𝗾𝘂𝗮𝗿𝗶𝘂𝗺 𝗳𝗿𝗮𝗴 𝗿𝗮𝗰𝗸 built from black domestic cell cast acrylic with a heavy-duty gray food-grade silicone insert to hold frag plugs in place. The innovative design utilizes four 1/2" slip bulkheads (included) and the PVC nipple feet allow racks to lock in place within a cooler for transport. Multiple racks can be stacked and tiered in many orientations with adjustable height PVC pieces (PVC not included). One rack included in purchase. Minimalist design will blend with your existing system and not draw attention away from your reef. Choose 11.5" x 11.5" ( 86 holes ) or 15.5" x 11.25" ( 126 holes)