• Motor Head Replacement: This is a head replacement for 22mm or 28mm 2 port Zone Valve and 3 port Zone Valve normally closed
• Easy Fitting: The universal fit of this motorised valve head can be easily fitted in existing central heating system.
• Honeywell Replacement: This powerhead valve replaces the Honeywell V4043H.
• Compatibility: It's designed to be compatible with most central heating systems and boilers.

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