The Burnett & Hillman VRB0804GAUGE is a high-quality brass adaptor designed for hydraulic and pneumatic applications. This essential component features a 1/2" BSP male thread on one end and a 1/4" BSP female thread on the other, allowing for seamless connection between different thread sizes. Manufactured by Burnett & Hillman, it ensures reliable performance and durability in demanding environments. This adaptor is commonly used to connect pressure gauges or other components with 1/4" BSP female threads to systems with 1/2" BSP female ports.