Lava Rock is an efficient and cost-effective material for your gas fire pit providing excellent coverage as a base filler alongside other fire pit products like fire glass and fire balls. A ten-pound bag of lava rock fills as much space as twenty pounds of fire glass, making it a budget-friendly option. Lava Rocks work well to conceal gas piping and tubes making it a great choice for your fire feature. For those opting for a rustic feel with ceramic logs in their gas fireplace, incorporating lava rock can enhance the outdoorsy ambiance. To achieve optimal results, it's recommended to pour at least two inches of lava rock over the fire pit burner, enabling even gas filtration throughout the lava rock media.