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70.5 MB (1.2 MB compressed)
4300 x 5733 pixels
36.3 x 48.5 cm ⏐ 14.3 x 19.1 in (300dpi)
TEK IMAGE / SCIENCE PHOTO LIBRARY TEK IMAGE / SCIENCE PHOTO LIBRARY
Thermostatic radiator valve (TRV) on a domestic radiator. TRVs adjust the temperature output from a radiator by sensing the air temperature around them and regulating the flow of the water through the radiator.
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