The 40FL Plug by Fittings Unlimited Inc is engineered for optimal performance in fluid transfer applications. With a 40mm diameter, this plug is compatible with a variety of fittings, ensuring a tight seal and preventing leaks. Made from high-grade materials, it is built to withstand high pressure and temperature variations, making it suitable for both residential and industrial environments. This plug adheres to industry standards, providing peace of mind in critical applications. Its user-friendly design allows for quick and easy installation, making it a reliable choice for your fitting needs.