Rasmussen 24" Brown Alterna Ventless FireStones Double Sided - DF-AFS24-BR brings a warm, earthy tone to your ventless fireplace, adding a natural accent from both sides. Crafted from durable ceramic-bonded refractory material, these firestones are heat-resistant, providing lasting quality without cracking. Perfect for concealing burners, this brown-toned set complements rustic and transitional decor seamlessly. Compatible exclusively with Rasmussen Alterna Vent-Free FireStones Burners (sold separately).