The water from the rounded stones also flows down to the lower stones, softening the sludge. Suitable as a top stone for all stoves, to ensure air circulation it is not advisable to fill the entire stove with rounded stones. The diameter of the stones is less than 10 cm. One box contains 15 kg of stones.
- olivine base
- rounded stones
- stone diameter 5-10cm
- box size 15kg
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