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Grodan 140ml sample needle

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Grodan 140ml sample needle

Item no. 940010607
box = 20 piece(s)
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Substrate samplers
Substrate samplers can be used for the measurement of the EC and pH content in the stone wool slabs, which are available in various sizes and designs. It's easy to take samples of the substrate with the mini-sampler or the grodan spray. The mini-sampler is in contrast to the grodanspray equipped with a shutt-off needle, which prevents clogging of the feed tube.
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