Bypass Line Delete Feature The bypass line delete feature allows for improved flow efficiency, enhancing the performance of your car's radiator. Durable Construction Crafted with durability in mind, this product withstands the rigors of daily use, providing long-lasting performance. Easy Installation With its straightforward design, this product is easy to install, saving you time and effort. Inline Thermostat Housing Compatibility This product is specifically designed for inline thermostat housing, ensuring a perfect fit for your vehicle's cooling system. Integrated 1/2" NPT Port Equipped with a 1/2" NPT port, this product offers easy connectivity and compatibility with various radiator parts. Inline Thermostat Housing/Bypass Line Delete drilled incorporates a 1/2" NPT Port Description : You can install this housing in the upper or lower radiator hose. This makes removing the factory bypass or addingone a breeze. You can also use a 1/2" NPT to 3/8" NPT reducer to install a coolant temp sensor or just plug it if you like. Features: 4" Long x 3 1/4" Diameter Includes 180 Thermostat and Gasket Fits 1.5" Hose and -16AN in and out or any configuration Super easy thermostat removal for servicing or thermostat swaps Includes Hardware, Thermostat, and Performance Grade Viton O-ring