Chrome Plated Hose Reducer - 1/2" x 3/4"
 is a plumbing adapter used to connect shower hoses or taps of different standard British Standard Pipe (BSP) thread sizes. It converts a larger 3/4-inch female connection to a smaller 1/2-inch male connection. 
 
Key Features and Specifications
Function: This reducer adapter allows a shower hose with the common 1/2-inch BSP male fitting to connect to a tap or mixer with a 3/4-inch BSP female outlet.
Material: The fitting is typically made from chrome-plated brass for durability, resistance to corrosion, and a polished appearance that matches other bathroom fixtures.
Thread Sizes:
Female End: 3/4-inch BSP (measures approximately 1 inch or 25mm in diameter with a ruler).
Male End: 1/2-inch BSP (measures approximately 3/4 inch or 20mm in diameter with a ruler).
Installation: It is designed for easy installation, often without the need for additional sealants like PTFE tape, as it typically includes a leak-proof rubber washer or gasket.
Pressure/Temperature Ratings: According to general product listings for similar items, these reducers have a maximum working temperature of up to 95°C and a maximum working pressure of 1.0 MPa (around 10 bar).