Harvia R-991 | Rounded Sauna Stones 33 lbs

Harvia R-991 rounded sauna stones in olivine diabase, 2 to 4 inch, sold by the 33 lb box. These are the stones Harvia specifies for the Spirit series.

• Olivine diabase, durable with high heat capacity
• Rounded shape, grey
• 2 to 4 inch (5-10 cm)
• 33.1 lbs (15 kg) per box
• Specified for the Harvia Spirit series, which needs 110 lbs, so four boxes