Grodan Rockwool Block 15x15x14.2cm Holes 25mm & 40mm (1 pc)

Grodan

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14,00 zł tax incl.

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Grodan Rockwool Block 15x15x14.2cm Holes 25mm & 40mm (1 pc)

Grodan Rockwool Block 15x15x14.2cm Holes 25mm & 40mm (1 pc)

These Grodan rockwool blocks should be soaked in pH 5.5 water overnight before you use them. 
They come with a neutral pH value of 7.0. 
The hole (27/35mm) has the right size for the little Grodan rockwool plugs of the propagation trays. 

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These Grodan rockwool blocks should be soaked in pH 5.5 water overnight before you use them. 
They come with a neutral pH value of 7.0. 
The hole (27/35mm) has the right size for the little Grodan rockwool plugs of the propagation trays. 

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Grodan Rockwool Block 15x15x14.2cm Holes 25mm & 40mm (1 pc)