This corner TRV in polished brass is the ideal combination of style and practicality. Part of the Derry Bold range, it fits 15mm copper pipes and Ω" BSP radiator connections. Made from solid brass, it’s demountable, reusable, and suitable for both soft and hard water systems. These valves have a 10mm pipework connection, so will fit pipework of the same size. Weight: 1.3007273458 Pounds, Manufacturer: UK Radiators