Honeywell Home V4073A1039/U 3 Port Motorised Valve 22mm 22mm Compression | Motorised Valves | Screwfix.com
How to renew a motorised valve motor or head. No draining down. - YouTube
Honeywell V4073 Powerhead/Actuator Head for 3 Port Mid Position Diverter Valve | eBay
SPARES2GO 5 Wire 22mm Motorised 3 Port Mid Position Valve for Central Heating/Boiler Systems (Will Replace Honeywell V4073A) : Amazon.co.uk: DIY & Tools