The 40YST 5/16" BUNA FUEL coupling from PT Coupling Co is specifically designed for fuel transfer applications. Featuring a 5/16" size specification, this coupling is made from BUNA rubber, providing excellent resistance to fuels and chemicals. It is engineered to handle pressures typical in fuel systems, ensuring a secure and leak-free connection. The robust design meets industry standards, making it suitable for both commercial and industrial use. This coupling offers flexibility and durability for long-lasting performance.