Straight thermostatic radiator valve.
TECHNICAL SPECIFICATION :
With thermostatic head and reversible bi-directional body.
Built-in sensor with liquid-filled element.
Graduated scale from 0 to 5 corresponding to temperature setting ranges from 6°C - 28°C with frost protection setting as well.
Has 1/2 inch male BSP outlet (standard radiator size) and 15mm pipe inlet connection - see BSPT link at bottom of page for information on plumbing thread sizes.