Rasmussen 30" Brown Alterna Ventless FireStones Single Sided - AFS30-BR brings a warm, natural tone to your ventless fireplace, perfect for adding an earthy accent. Crafted from durable ceramic-bonded refractory material, these firestones are heat-resistant, ensuring long-lasting quality without cracking. Ideal for concealing burners, this brown-toned set complements rustic and transitional decor beautifully. Compatible exclusively with Rasmussen Alterna Vent-Free FireStones Burners (sold separately).