The Rasmussen 18" Dark Gray Vented Uniform FireBalls - FB18-DG add a bold, contemporary touch to your fireplace. Made from durable ceramic, these fireballs feature a dark gray eco-friendly stain that withstands high heat without fading. Their uniform shape conceals the burner for a sleek, minimalist appearance. Compatible with Rasmussen Vented Custom Pan Burners (sold separately), these fireballs are the perfect addition to both modern homes and commercial spaces, creating a striking visual element for any vented fireplace.