The JCM Industries KEL300 Steel Coupling for Steel Pipe Sizes features an epoxy coat and stainless steel bolts, designed for pipes measuring 4 to 4.5 inches. This coupling provides excellent corrosion resistance, making it suitable for both indoor and outdoor applications. The epoxy coating enhances durability, while the stainless steel bolts ensure a secure fit. This coupling meets industry standards for safety and performance, making it a reliable choice for professionals in plumbing and industrial sectors. Its easy installation process allows for quick and efficient assembly.