The Scalemaster Condensemaster Neutralizer is a white plastic unit designed specifically for condensing boilers, with a 22mm pipe diameter. Made by the brand Scalemaster in the United Kingdom, this central heating and water treatment accessory is suitable for any room in a home. This single-pack neutralizer helps to prevent scale build-up in condensing pipes, ensuring optimal performance and longevity for heating systems. Its compact size and lightweight design make it a practical addition to any plumbing setup.Some boxes may be marked/Tatty from storage