Transform your existing fire pit into a smokeless wonder with the Zentro® Smokeless Fire Pit Insert. Designed to fit into most standard fire pits, Zentro® makes it easy to upgrade to a smokeless experience without starting from scratch. The Zentro smokeless fire pit insert makes a perfect addition to your backyard ! Slides easily into a new or existing block, stone surround, or masonry pit, the Zentro is the ultimate fire pit upgrade! Designed with clean lines and an air of sophistication, while maintaining the raw and primal aesthetic of real wood-fueled fire. Zentro is built 100% in America and is backed by a Lifetime Warranty. Each unit weighs over 100 pounds of 304 Stainless Steel ! In addition to our patented X Airflow system for optimal primary air, the Zentro has spacer brackets under the flange to ensure maximum air flow. No moving parts, simply drop into your paver, block, or stone fire pit and you are done! NOTE: For optimal airflow, your fire pit surround should have a depth of at least 15 inches, allowing 3 inches of space between the bottom of the insert and the ground. Minimum height requirement for building a surround is 15" inches. LID IS INCLUDED Zentro 24" Smokeless Fire Pit Insert - Round Inside Diameter : 24" Height: 12" Weight: 77 lbs. Fits into 27"-33" block ring inside diameter Zentro 24" Smokeless Fire Pit Insert - Square Inside Dimensions: 24"x24" Height: 12" Weight: 106 lbs. Fits into 27"-33" block ring inside dimensions Zentro 30" Smokeless Fire Pit Insert - Round Inside Diameter : 30" Height: 12" Weight: 135 lbs. Fits into 34"-39" block ring inside diameter If you purchased your Zentro 30 prior to April 1, 2025, please contact our Customer Service team regarding which heat deflector size is compatible.