Great value 8/10/15mm Angled TRV with a liquid filled sensor and white TRV head. It has a diameter of 15mm x 1/2 inch Angled body, is machine polished chrome, and approved to EN215 Keymark Approved. The temperature range is 6-28 deg with a frost setting of 6 deg. Suitable for radiators and towel rails, with compression ends. The size is 15mm x 1/2 inch.