The double skinned stress resistant storage box design allows for the heat mat and wiring system to be kept dry and isolated away from your Mushroom Growing Project.  We have added more ventilation holes for you in the side walls. The vent holes can either be left open or closed with micropore tape or polyfill cushion stuffing. Blocking or partially blocking the air holes with breathable filter material will decrease the amount airflow through the box. The vent holes are melted through the plastic walls and this seals the unit together at the same time. Melted holes are much less likely to crack than drilled holes as the plastic is not removed with melting. Rather forming a re-enforcing ring around the melted vent hole.
 
Perfect for keeping your mushroom project at just the right temperature with the user settable digital thermostat.
 
Size and Specification:
41cm long.
31cm wide. 
28cm high.
7watt heat mat
Digital thermostat
Uk Plug 3amp
Lid included.