American Fyre Designs™ 688 Louvre Long Rectangle Fire Pit - 688-xx-11-V8xC. The 72″ x 30″ Long Rectangle Fire Pit has a smooth concrete exterior and smooth rim around the top. With options such as glass, creek stones, lava coals, or campfire logs, these fire pits can enhance any backyard. Made from glass fiber reinforced concrete (GFRC), these fire pits come in a variety of different colors. Fuel options include Natural Gas or Propane.