This Ariston actuator bush is the perfect replacement part for your microgenus 23 or 27 heating system. Designed to fit seamlessly into your system, this high-quality bush will ensure the smooth operation of your heating system for years to come. Whether you're looking to replace a faulty part or simply need a spare, this Ariston actuator bush is an excellent choice. With FREEPOST delivery and a range of helpful features, this item is sure to meet all of your heating system needs. So why wait? Order yours today and enjoy a warm, comfortable home all year round.