The Replacement 5" Plastic Trap Ball is designed specifically for 4" moisture traps, ensuring optimal performance and reliability. Made from durable plastic, this trap ball is engineered to withstand various environmental conditions while maintaining its shape and functionality. With a precise diameter of 5 inches, it fits seamlessly into compatible moisture traps, providing effective sealing and preventing leaks. This product is ideal for use in plumbing and drainage systems, ensuring compliance with industry standards. Upgrade your moisture trap with this reliable replacement part.