The SEALFAST API Coupler is a lever-actuated 4" coupler designed for efficient and secure connections in fluid transfer applications. This coupler meets API standards, ensuring compatibility with various systems in the oil and gas industry. Its durable construction allows for high-pressure operation, making it suitable for demanding environments. The lever actuation provides ease of use, allowing for quick and reliable connections. Ideal for tank trucks and other fluid transport systems, this coupler enhances operational efficiency.