Rear refractory stone 316x320 De Dietrich 7774085

The rear refractory stone, sized 316x320, is designed to line the back of your boiler's combustion chamber, providing excellent thermal insulation and heat resistance. This component plays a vital role in directing heat where it is needed and protecting the boiler casing from extreme temperatures. Ideal for boiler spare parts replacement or burner repair, this refractory stone ensures your heating equipment operates efficiently and safely. A durable choice for long-term performance.