Caleffi 309473 CST 1/2″ Series 309 Pressure and Temperature Relief Valve 90°C 7 Bar WRAS Approved for Unvented Systems
£29.99Caleffi 309473 CST Series 309 Relief Valve provides dual protection at 90°C temperature and 7 Bar pressure with 1/2″ connection—WRAS approved for unvented storage systems.