Drayton 22mm Brass 2 Port Zone Valve Body 27600. Drayton Part No: 27600 / 679-2. Drayton part number 27600. For use with ZA5 or ZA6 actuators. 22mm 2-Port valve body. Add to Favourites. We currently are able to accommodate the oldest and deprecated boilers to the very latest energy-efficient central heating systems.
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