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The Isokern Double Module DM 44 Range are part of the Isokern Pumice Chimney Systems and are available in three diameter sizes - ideal for inserts, stoves and small open fires.
Isokern's Double Module System is designed to belightweight, quick and easy to install. The DM 44 inner liners fit into the same external block size. The double layer of pumice blocks feature an air gap to maximise chimney insulation.