Protects drain and deodorizes in one step. Pliable screen traps debris. Effective and economical para deodorizer lasts up to 30 days. USDA Classification C1.Para block deodorants are air-activated, freshen the air, and eliminate undesirable odors. Made from paradichlorobenzene saturated with liquid deodorants. WARNING: This product contains a chemical known to the State of California to cause cancer. KRYPBS$3.49 Become a member of our supply community and you'll be notified of new products, labor-saving innovations, and special promotions tailored specifically for the U.S. Navy at SUPPLYTHENAVY.COM. Just call 1-888-622-0356 or click Get on the List!