Durable DuPont Zytel valve and handle won't rust or corrode - Durable, corrosion-proof body - Seamless aluminum cylinder won't rust - High-gloss epoxy finish resists chipping - Non-toxic dry chemical extinguishing agent - Perfect for home, marine and auto use - U.S. Coast Guard Approved - 6 Year Warranty - UL Rated 5-B:C.