The material composition and chemical formulation of MECS® XLP-110 enable effective conversion for a multitude of gas conditions. From the harsh conditions encountered in the first catalyst bed to the high SO3 and low O2 conditions in the final bed, our proven XLP-110 formulation provides reliable conversion in all converter passes. XLP-110 has had a successful track record in meeting or exceeding performance expectations of customers in the sulfuric acid industry since 2003.